# Symfony

> `LAB ONLY` | `AUTHORIZED TARGETS ONLY` | 自动生成索引

- 系统 ID: `symfony`
- 分类: `frameworks`
- 覆盖策略: `rolling-24m`
- 总案例数: `9`
- 近 30 天新增/更新: `9`
- 重点 Markdown 案例数: `9`
- 已实证(真实版本): `0`
- 已实证(synthetic): `0`
- 阻塞数: `0`
- 待人工/缺浏览器证据: `9`
- 最近渲染时间: `2026-04-02T09:18:51+00:00`

## 目标约束

- 适用目标类型: `lab-local, lab-public, authorized-third-party`
- 是否允许公网验证: `yes, but ownership or authorization is required`
- 授权前提: 资产归属可证明，或已取得书面/明确授权。
- 最小化验证方式: 最小化验证、只读探测、可审计回显、受控注入。
- 禁止场景: 无归属证明或无明确授权的公网目标；知名公共网站或与测试无关的第三方资产；会造成持久破坏、数据越权下载或不可回滚影响的动作

## 来源

- `official` [GitHub Global Advisories](https://github.com/advisories) (ecosystem=composer; mode=core)
- `official` [OSV Symfony](https://osv.dev/) (mode=core)

## 案例列表

| 标题 | 严重度 | 案例状态 | 实证状态 | 实证方式 | 来源置信度 | 更新时间 | 案例页 |
|------|--------|----------|----------|----------|------------|----------|--------|
| CSV Injection in symfony/serializer | `low` | `generated` | `triage-manual` | `synthetic` | `official` | `2026-03-13T21:59:52.395727Z` | [link](/Users/x/websafe/07-framework-security/frameworks/symfony/cases/symfony-cve-2021-41270.md) |
| Cookie persistence after password changes in symfony/security-bundle | `low` | `generated` | `triage-manual` | `synthetic` | `official` | `2026-03-13T22:14:23.582059Z` | [link](/Users/x/websafe/07-framework-security/frameworks/symfony/cases/symfony-cve-2021-41268.md) |
| Webcache Poisoning in symfony/http-kernel | `low` | `generated` | `triage-manual` | `synthetic` | `official` | `2026-03-13T22:00:11.423907Z` | [link](/Users/x/websafe/07-framework-security/frameworks/symfony/cases/symfony-cve-2021-41267.md) |
| Authentication granted to all firewalls instead of just one | `low` | `generated` | `triage-manual` | `synthetic` | `official` | `2026-03-13T22:01:16.333089Z` | [link](/Users/x/websafe/07-framework-security/frameworks/symfony/cases/symfony-cve-2021-32693.md) |
| Prevent user enumeration using Guard or the new Authenticator-based Security | `low` | `generated` | `triage-manual` | `synthetic` | `official` | `2026-03-13T22:16:14.858636Z` | [link](/Users/x/websafe/07-framework-security/frameworks/symfony/cases/symfony-cve-2021-21424.md) |
| RCE in Symfony | `low` | `generated` | `triage-manual` | `synthetic` | `official` | `2026-03-13T22:14:38.594283Z` | [link](/Users/x/websafe/07-framework-security/frameworks/symfony/cases/symfony-cve-2020-15094.md) |
| Firewall configured with unanimous strategy was not actually unanimous in Symfony | `low` | `generated` | `triage-manual` | `synthetic` | `official` | `2026-03-13T22:16:03.504887Z` | [link](/Users/x/websafe/07-framework-security/frameworks/symfony/cases/symfony-cve-2020-5275.md) |
| Exceptions displayed in non-debug configurations in Symfony | `low` | `generated` | `triage-manual` | `synthetic` | `official` | `2026-03-13T22:15:59.230149Z` | [link](/Users/x/websafe/07-framework-security/frameworks/symfony/cases/symfony-cve-2020-5274.md) |
| Prevent cache poisoning via a Response Content-Type header in Symfony | `low` | `generated` | `triage-manual` | `synthetic` | `official` | `2026-03-13T22:01:08.748385Z` | [link](/Users/x/websafe/07-framework-security/frameworks/symfony/cases/symfony-cve-2020-5255.md) |