文件
websafe-kb/08-threat-intel/registry/advisories/discourse--dc3c665a74.json
2026-03-21 18:18:55 -07:00

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{
"canonical_id": "discourse--dc3c665a74",
"system_id": "discourse",
"display_name": "Discourse",
"category": "cms",
"advisory_mode": "core",
"title": "3.5.0.beta8: Bundled plugins, a new theme, better color management, powerful filtering, and advanced image controls",
"summary": "<h2><a name=\"p-1821846-new-features-in-350beta8-1\" class=\"anchor\" href=\"https://meta.discourse.org#p-1821846-new-features-in-350beta8-1\" aria-label=\"Heading link\"></a>New features in 3.5.0.beta8</h2>\n<h3><a name=\"p-1821846-package-popular-plugins-now-bundled-with-discourse-core-2\" class=\"anchor\" href=\"https://meta.discourse.org#p-1821846-package-popular-plugins-now-bundled-with-discourse-core-2\" aria-label=\"Heading link\"></a><img src=\"https://emoji.discourse-cdn.com/twitter/package.png?v=15\" title=\":package:\" class=\"emoji\" alt=\":package:\" loading=\"lazy\" width=\"20\" height=\"20\"> Popular plugins now bundled with Discourse core</h3>\n<p>We\u2019re making Discourse more powerful and easier to use out-of-the-box by bundling a set of our most popular plugins directly with Discourse core. This means widely-used plugins like Assign, Solved, <a href=\"https://meta.discourse.org/t/32566?silent=true\">Data Explorer</a>, Reactions, and more will be included by default when you install or update Discourse, with no separate plugin installation required, making it much easier to access these powerful features.</p>\n<ul>\n<li>\n<p><strong>No change for managed hosting</strong>: Sites on Discourse hosting will not be impacted, while self-hosters will be prompted to remove these plugins from their <code>app.yml</code> on their next rebuild.</p>\n</li>\n<li>\n<p><strong>Disabled by default</strong>: All bundled plugins remain disabled by default, so there is no visible change or added functionality unless you enable them.</p>\n</li>\n<li>\n<p><strong>No performance impact:</strong> Disabled plugins do not add any extra JavaScript or server load, ensuring your site remains as lean as ever if you do not enable them.</p>\n</li>\n</ul>\n<p>For full details, a complete plugin list, and upgrade instructions for self-hosters, check out <a href=\"https://meta.discourse.org/t/bundling-more-popular-plugins-with-discourse-core/373574\">the official announcement</a>.</p>\n<h3><a name=\"p-1821846-sunrise-new-horizon-theme-available-for-all-3\" class=\"anchor\" href=\"https://meta.discourse.org#p-1821846-sunrise-new-horizon-theme-available-for-all-3\" aria-label=\"Heading link\"></a><img src=\"https://emoji.discourse-cdn.com/twitter/sunrise.png?v=15\" title=\":sunrise:\" class=\"emoji\" alt=\":sunrise:\" loading=\"lazy\" width=\"20\" height=\"20\"> New Horizon theme, available for all</h3>\n<p></p><div class=\"lightbox-wrapper\"><a class=\"lightbox\" href=\"https://d11a6trkgmumsb.cloudfront.net/original/4X/f/0/1/f01602b68cdab5a3e8c0f180f3209973b4f6c974.jpeg\" data-download-href=\"/uploads/short-url/yfTKwwuEV2xG3fGbGSYU4sfBCra.jpeg?dl=1\" title=\"image\" rel=\"noopener nofollow ugc\"><img src=\"https://d11a6trkgmumsb.cloudfront.net/optimized/4X/f/0/1/f01602b68cdab5a3e8c0f180f3209973b4f6c974_2_690x479.jpeg\" alt=\"image\" data-base62-sha1=\"yfTKwwuEV2xG3fGbGSYU4sfBCra\" width=\"690\" height=\"479\" srcset=\"https://d11a6trkgmumsb.cloudfront.net/optimized/4X/f/0/1/f01602b68cdab5a3e8c0f180f3209973b4f6c974_2_690x479.jpeg, https://d11a6trkgmumsb.cloudfront.net/optimized/4X/f/0/1/f01602b68cdab5a3e8c0f180f3209973b4f6c974_2_1035x718.jpeg 1.5x, https://d11a6trkgmumsb.cloudfront.net/optimized/4X/f/0/1/f01602b68cdab5a3e8c0f180f3209973b4f6c974_2_1380x958.jpeg 2x\" data-dominant-color=\"CED0C9\"></a></div><p></p>\n<p>We\u2019re happy to announce Horizon, our newest default theme designed for a beautiful, friendly first impression and streamlined community experience! Highlights include:</p>\n<ul>\n<li>\n<p><strong>Simplified, modern topic cards</strong>: Less clutter, more focus.</p>\n</li>\n<li>\n<p><strong>Larger reading area text</strong>: Improves readability, especially on mobile.</p>\n</li>\n<li>\n<p><strong>Multiple color palettes</strong>: Built-in options for better personalization.</p>\n</li>\n<li>\n<p><strong>Optimized for non-technical admins</strong>: Out-of-the-box, minimal-setup design that looks great on every device.</p>\n</li>\n</ul>\n<p>Horizon is now included in all Discourse sites - both new and existing. Read more in <a href=\"https://meta.discourse.org/t/introducing-horizon-our-newest-theme/369608\">the announcement</a>.</p>\n<h3><a name=\"p-1821846-artist_palette-a-new-way-to-manage-color-palettes-4\" class=\"anchor\" href=\"https://meta.discourse.org#p-1821846-artist_palette-a-new-way-to-manage-color-palettes-4\" aria-label=\"Heading link\"></a><img src=\"https://emoji.discourse-cdn.com/twitter/artist_palette.png?v=15\" title=\":artist_palette:\" class=\"emoji\" alt=\":artist_palette:\" loading=\"lazy\" width=\"20\" height=\"20\"> A new way to manage color palettes</h3>\n<p></p><div class=\"lightbox-wrapper\"><a class=\"lightbox\" href=\"https://d11a6trkgmumsb.cloudfront.net/original/4X/8/c/c/8cc9277256c2422a5654b529d74796f763b15878.png\" data-download-href=\"/uploads/short-url/k5rOCF7EH2OnnwzTvvfPnOJaDdS.png?dl=1\" title=\"Screenshot 2025-07-22 at 14.40.28\" rel=\"noopener nofollow ugc\"><img src=\"https://d11a6trkgmumsb.cloudfront.net/optimized/4X/8/c/c/8cc9277256c2422a5654b529d74796f763b15878_2_686x500.png\" alt=\"Screenshot 2025-07-22 at 14.40.28\" data-base62-sha1=\"k5rOCF7EH2OnnwzTvvfPnOJaDdS\" width=\"686\" height=\"500\" srcset=\"https://d11a6trkgmumsb.cloudfront.net/optimized/4X/8/c/c/8cc9277256c2422a5654b529d74796f763b15878_2_686x500.png, https://d11a6trkgmumsb.cloudfront.net/optimized/4X/8/c/c/8cc9277256c2422a5654b529d74796f763b15878_2_1029x750.png 1.5x, https://d11a6trkgmumsb.cloudfront.net/optimized/4X/8/c/c/8cc9277256c2422a5654b529d74796f763b15878_2_1372x1000.png 2x\" data-dominant-color=\"D1D1D2\"></a></div><p></p>\n<p>We\u2019re excited to announce a redesigned way for admins to manage and select color palettes in Discourse! The new color palette list page introduces:</p>\n<ul>\n<li>\n<p><strong>Visual palette previews:</strong> Instantly see every available palette, each displayed in cards with live previews.</p>\n</li>\n<li>\n<p><strong>Clear status labels:</strong> Quickly identify which palette is active and which are selectable by users.</p>\n</li>\n<li>\n<p><strong>Easy palette management:</strong> Toggle the active palette or adjust which palettes are user-selectable, all from one page.</p>\n</li>\n</ul>\n<p>The update is mobile-friendly and gives admins a clear, visual overview of all palettes for a streamlined workflow. <a href=\"https://meta.discourse.org/t/a-new-way-to-manage-colour-palettes/375188\">Read more in the announcement</a>.</p>\n<h3><a name=\"p-1821846-magnifying_glass_tilted_left-dynamic-topic-filtering-now-available-5\" class=\"anchor\" href=\"https://meta.discourse.org#p-1821846-magnifying_glass_tilted_left-dynamic-topic-filtering-now-available-5\" aria-label=\"Heading link\"></a><img src=\"https://emoji.discourse-cdn.com/twitter/magnifying_glass_tilted_left.png?v=15\" title=\":magnifying_glass_tilted_left:\" class=\"emoji\" alt=\":magnifying_glass_tilted_left:\" loading=\"lazy\" width=\"20\" height=\"20\"> Dynamic topic filtering now available</h3>\n<p></p><div class=\"lightbox-wrapper\"><a class=\"lightbox\" href=\"https://d11a6trkgmumsb.cloudfront.net/original/4X/3/0/9/309614304915853afa454eb838b79ab86e032343.png\" data-download-href=\"/uploads/short-url/6VOsAjv7uPZzhQM3GtDLYwqA4G7.png?dl=1\" title=\"image\" rel=\"noopener nofollow ugc\"><img src=\"https://d11a6trkgmumsb.cloudfront.net/optimized/4X/3/0/9/309614304915853afa454eb838b79ab86e032343_2_338x375.png\" alt=\"image\" data-base62-sha1=\"6VOsAjv7uPZzhQM3GtDLYwqA4G7\" width=\"338\" height=\"375\" srcset=\"https://d11a6trkgmumsb.cloudfront.net/optimized/4X/3/0/9/309614304915853afa454eb838b79ab86e032343_2_338x375.png, https://d11a6trkgmumsb.cloudfront.net/optimized/4X/3/0/9/309614304915853afa454eb838b79ab86e032343_2_507x562.png 1.5x, https://d11a6trkgmumsb.cloudfront.net/optimized/4X/3/0/9/309614304915853afa454eb838b79ab86e032343_2_676x750.png 2x\" data-dominant-color=\"F7F7F7\"></a></div><p></p>\n<p>The improved <code>/filter</code> route brings faster, smarter topic search and filtering! This update to the topics filtering UI includes:</p>\n<ul>\n<li>\n<p><strong>Keyword search:</strong> Effortlessly search for topics by typing any keyword or phrase.</p>\n</li>\n<li>\n<p><strong>Autocomplete:</strong> Navigate filtering options with new autocomplete suggestions.</p>\n</li>\n<li>\n<p><strong>Find it in the sidebar:</strong> The <code>/filter</code> link is available under \u201cMore\u2026\u201d in the sidebar by default.</p>\n</li>\n</ul>\n<p>Read <a href=\"https://meta.discourse.org/t/new-topic-filtering-ui/375563\">the announcement</a> for more, and dive deeper with <a href=\"https://meta.discourse.org/t/filtering-topic-lists-in-discourse/375558\">the documentation</a>.</p>\n<h3><a name=\"p-1821846-framed_picture-advanced-image-controls-in-the-composer-6\" class=\"anchor\" href=\"https://meta.discourse.org#p-1821846-framed_picture-advanced-image-controls-in-the-composer-6\" aria-label=\"Heading link\"></a><img src=\"https://emoji.discourse-cdn.com/twitter/framed_picture.png?v=15\" title=\":framed_picture:\" class=\"emoji\" alt=\":framed_picture:\" loading=\"lazy\" width=\"20\" height=\"20\"> Advanced image controls in the composer</h3>\n<p></p><div class=\"lightbox-wrapper\"><a class=\"lightbox\" href=\"https://d11a6trkgmumsb.cloudfront.net/original/4X/4/0/e/40ec8a2d242780c69fb8772090b16d225c37896c.png\" data-download-href=\"/uploads/short-url/9glldn8hB7ncKl8sifYw8uS7DL6.png?dl=1\" title=\"composer-image-ui\" rel=\"noopener nofollow ugc\"><img src=\"https://d11a6trkgmumsb.cloudfront.net/optimized/4X/4/0/e/40ec8a2d242780c69fb8772090b16d225c37896c_2_281x375.png\" alt=\"composer-image-ui\" data-base62-sha1=\"9glldn8hB7ncKl8sifYw8uS7DL6\" width=\"281\" height=\"375\" srcset=\"https://d11a6trkgmumsb.cloudfront.net/optimized/4X/4/0/e/40ec8a2d242780c69fb8772090b16d225c37896c_2_281x375.png, https://d11a6trkgmumsb.cloudfront.net/original/4X/4/0/e/40ec8a2d242780c69fb8772090b16d225c37896c.png 1.5x, https://d11a6trkgmumsb.cloudfront.net/original/4X/4/0/e/40ec8a2d242780c69fb8772090b16d225c37896c.png 2x\" data-dominant-color=\"71747A\"></a></div><p></p>\n<p>The new composer offers a modern writing experience, including an all-new image handling UI! With this new toolbar, you can:</p>\n<ul>\n<li>\n<p><strong>Scale images:</strong> Resize your images directly in the visual editor.</p>\n</li>\n<li>\n<p><strong>Set alt text:</strong> Add or edit alt text and captions to keep your posts accessible.</p>\n</li>\n<li>\n<p><strong>Delete images:</strong> Remove uploaded images with a click.</p>\n</li>\n</ul>\n<p>This user-friendly interface makes working with images in your posts easier than ever.</p>\n<p>The new composer is <a href=\"https://meta.discourse.org/t/choosing-the-default-composer-mode-for-your-community/375476\">now available in all communities</a> to make writing in Discourse easier for all your members. Read <a href=\"https://meta.discourse.org/t/introducing-our-new-composer-making-writing-on-discourse-easier-than-ever/369779\">the full announcement about the new composer experience</a> to learn more.</p>\n<h2><a name=\"p-1821846-security-updates-7\" class=\"anchor\" href=\"https://meta.discourse.org#p-1821846-security-updates-7\" aria-label=\"Heading link\"></a>Security Updates</h2>\n<p>This release includes fixes for these security issues reported by our community and <a href=\"https://hackerone.com/discourse\" rel=\"noopener nofollow ugc\">HackerOne</a>.</p>\n<ul>\n<li><a href=\"https://github.com/discourse/discourse/security/advisories/GHSA-hv49-93h5-4wcv\" class=\"inline-onebox\" rel=\"noopener nofollow ugc\">WebAuthn challenge not cleared from user's session after authentication \u00b7 Advisory \u00b7 discourse/discourse \u00b7 GitHub</a></li>\n</ul>\n <p><small>2 posts - 2 participants</small></p>\n <p><a href=\"https://meta.discourse.org/t/3-5-0-beta8-bundled-plugins-a-new-theme-better-color-management-powerful-filtering-and-advanced-image-controls/375746\">Read full topic</a></p>",
"published_at": "Tue, 29 Jul 2025 03:46:34 +0000",
"updated_at": "Tue, 29 Jul 2025 03:46:34 +0000",
"severity": "unknown",
"cvss_score": null,
"exploit_status": "unknown",
"source_confidence": "official",
"official_source_url": "https://meta.discourse.org/t/3-5-0-beta8-bundled-plugins-a-new-theme-better-color-management-powerful-filtering-and-advanced-image-controls/375746",
"secondary_source_urls": [],
"aliases": [],
"cve_ids": [],
"ghsa_ids": [],
"osv_ids": [],
"affected_versions": [],
"fixed_versions": [],
"package_name": null,
"render_markdown": false,
"case_path": null,
"secure_code_topics": [
"authz-server-side-recheck",
"xss-output-encoding",
"plugin-extension-trust-policy",
"token-cookie-storage",
"file-upload-validation",
"dependency-upgrade-policy"
],
"status": "triage",
"triage_reasons": [
"missing affected/fixed version details"
],
"entity_refs": [
{
"entity_id": "discourse",
"entity_type": "system",
"relation": "root-system",
"root_system_id": "discourse",
"official": true
}
],
"affected_components": [
{
"name": "Discourse",
"entity_id": "discourse",
"scope": "core",
"package_name": null,
"official": true
}
],
"affected_version_ranges": [],
"fixed_version_ranges": [],
"introduced_version": null,
"patched_version": null,
"version_evidence_sources": [
"https://meta.discourse.org/t/3-5-0-beta8-bundled-plugins-a-new-theme-better-color-management-powerful-filtering-and-advanced-image-controls/375746"
],
"affected_version_refs": [],
"fixed_version_refs": [],
"patched_version_refs": [],
"version_sync_confidence": "low",
"advisory_scope": "core",
"version_confidence": "low",
"version_gap_reason": "official bulletin or aggregated source did not expose explicit affected/fixed versions",
"version_resolution_needed": true,
"workflow": {
"workflow_id": "discourse--dc3c665a74--workflow",
"vuln_family": "xss",
"entry_surface": "web-ui-render-path",
"preconditions": [
"\u4ec5\u5728 lab-local\u3001lab-public \u6216\u660e\u786e\u6388\u6743\u76ee\u6807\u4e2d\u6267\u884c\u3002",
"\u786e\u8ba4\u76ee\u6807\u547d\u4e2d\u7248\u672c\u65ad\u8a00: \u9700\u8981\u4ece\u516c\u544a\u3001\u9501\u6587\u4ef6\u3001\u7248\u672c\u9875\u6216\u5173\u4e8e\u9875\u9762\u4eba\u5de5\u786e\u8ba4\u7248\u672c\u547d\u4e2d",
"\u82e5\u5bf9\u8c61\u5c5e\u4e8e `core`\uff0c\u5148\u786e\u8ba4\u6269\u5c55/\u4ed3\u5e93/\u5305\u5df2\u542f\u7528\u5e76\u5904\u4e8e\u53d7\u5f71\u54cd\u7248\u672c\u3002"
],
"required_role": "editor-or-admin",
"affected_version_assertion": [
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],
"trigger_vector": "\u5bf9 `xss` \u5bb6\u65cf\u5165\u53e3\u6295\u9012\u6700\u5c0f\u5316\u3001\u53ef\u5ba1\u8ba1\u3001\u53ef\u56de\u6eda\u7684\u53d7\u63a7\u8f93\u5165\uff0c\u6bd4\u8f83\u4fee\u590d\u524d\u540e\u5dee\u5f02\u3002",
"request_or_ui_path": [
"/admin/editor",
"/preview",
"/rendered-content"
],
"input_shape": "\u53d7\u63a7 HTML/Markdown/\u5bcc\u6587\u672c\u8f93\u5165\uff0c\u89c2\u5bdf\u6e32\u67d3\u4e0a\u4e0b\u6587\u662f\u5426\u5931\u53bb\u7f16\u7801\u6216\u51c0\u5316\u3002",
"expected_unsafe_behavior": "\u8f93\u5165\u5728\u76ee\u6807\u4e0a\u4e0b\u6587\u6267\u884c\u6216\u88ab\u6d4f\u89c8\u5668\u89e3\u91ca\u4e3a\u4e3b\u52a8\u5185\u5bb9\u3002",
"server_evidence_points": [
"\u5e94\u7528\u65e5\u5fd7\u4e2d\u7684\u547d\u4e2d\u8def\u5f84\u3001\u9274\u6743\u51b3\u7b56\u548c\u5f02\u5e38\u6808",
"\u53cd\u5411\u4ee3\u7406\u6216\u8fb9\u754c\u5c42\u65e5\u5fd7\u4e2d\u7684\u8bf7\u6c42\u5934\u3001\u6765\u6e90 IP \u4e0e\u8def\u7531\u51b3\u7b56"
],
"browser_evidence_points": [
"\u57fa\u7ebf\u622a\u56fe\u4e0e\u653b\u51fb\u540e\u622a\u56fe\u7684 DOM/\u89c6\u89c9\u5dee\u5f02",
"console\u3001network \u4e0e response metadata \u4e2d\u7684\u5f02\u5e38\u4fe1\u53f7"
],
"db_or_fs_evidence_points": [
"\u6570\u636e\u5e93\u4e2d\u65b0\u589e/\u8d8a\u6743\u8bfb\u53d6\u7684\u6d4b\u8bd5\u6570\u636e",
"\u6587\u4ef6\u7cfb\u7edf\u4e2d\u65b0\u589e\u4e0a\u4f20\u6837\u672c\u3001\u7f13\u5b58\u6761\u76ee\u6216\u8d8a\u6743\u8bfb\u53d6\u75d5\u8ff9"
],
"detection_signals": [
"WAF / reverse proxy \u5f02\u5e38\u65e5\u5fd7\u3001\u8bbf\u95ee\u65e5\u5fd7\u548c\u544a\u8b66",
"\u5e94\u7528\u5ba1\u8ba1\u65e5\u5fd7\u4e2d\u7684\u6743\u9650\u9519\u8bef\u3001\u91cd\u5b9a\u5411\u5f02\u5e38\u3001\u6a21\u677f\u6e32\u67d3\u6216\u4e0a\u4f20\u843d\u76d8\u4e8b\u4ef6"
],
"mitigation_summary": "\u4f18\u5148\u5347\u7ea7\u5230\u4fee\u590d\u7248\u672c\uff0c\u5e76\u540c\u65f6\u6536\u7d27\u8f93\u5165\u6821\u9a8c\u3001\u670d\u52a1\u7aef\u9274\u6743\u3001\u4ee3\u7406\u4fe1\u4efb\u8fb9\u754c\u3001\u6269\u5c55\u5b89\u88c5\u4fe1\u4efb\u548c\u5ba1\u8ba1\u65e5\u5fd7\u3002",
"patch_validation_steps": [
"\u786e\u8ba4\u76ee\u6807\u7248\u672c\u4ece `\u53d7\u5f71\u54cd\u7248\u672c\u533a\u95f4` \u5347\u7ea7\u6216\u56de\u79fb\u5230 `\u4fee\u590d\u7248\u672c`\u3002",
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],
"lab_safety_notes": [
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