---
title: "RCE in Symfony"
system_id: "symfony"
category: "frameworks"
advisory_mode: "core"
published_date: "2020-09-02T17:29:56Z"
updated_date: "2026-03-13T22:14:38.594283Z"
severity: "low"
exploit_status: "unknown"
source_confidence: "official"
verification_status: "triage-manual"
verification_mode: "synthetic"
artifact_mode: "synthetic"
last_run_id: ""
target_types:
  - "lab-local"
  - "lab-public"
  - "authorized-third-party"
allow_public_validation: "yes, with ownership or explicit authorization"
authorization_prerequisite: "asset ownership proof or explicit written authorization"
minimal_validation: "read-only probe, controlled payload, reversible test"
aliases:
  - "BIT-symfony-2020-15094"
  - "CVE-2020-15094"
  - "GHSA-754h-5r27-7x3r"
affected_versions:
  - "v4.3.0"
  - "v4.3.1"
  - "v4.3.10"
  - "v4.3.11"
  - "v4.3.2"
  - "v4.3.3"
  - "v4.3.4"
  - "v4.3.5"
  - "v4.3.6"
  - "v4.3.7"
  - "v4.3.8"
  - "v4.3.9"
  - "v4.4.0"
  - "v4.4.0-BETA1"
  - "v4.4.0-BETA2"
  - "v4.4.0-RC1"
  - "v4.4.1"
  - "v4.4.10"
  - "v4.4.11"
  - "v4.4.12"
fixed_versions:
  - "4.4.13"
  - "5.1.5"
secure_code_topics:
  - "xss-output-encoding"
  - "authz-server-side-recheck"
  - "path-traversal-guard"
primary_source: "https://github.com/symfony/symfony/security/advisories/GHSA-754h-5r27-7x3r"
---

# RCE in Symfony

## 本地实证状态

- 实证状态: `triage-manual`
- 实证方式: `synthetic`
- Artifact 模式: `synthetic`
- 最近运行: `-`
- 浏览器证据: `missing`
- Run Bundle: `-`

## 事件层

- Canonical ID: `symfony--CVE-2020-15094`
- 系统: `symfony`
- 严重度: `low`
- 来源置信度: `official`
- 官方主源: https://github.com/symfony/symfony/security/advisories/GHSA-754h-5r27-7x3r
- 影响版本: `v4.3.0, v4.3.1, v4.3.10, v4.3.11, v4.3.2, v4.3.3, v4.3.4, v4.3.5, v4.3.6, v4.3.7`
- 修复版本: `4.4.13, 5.1.5`

## 其他来源

- https://nvd.nist.gov/vuln/detail/CVE-2020-15094
- https://github.com/symfony/symfony/commit/d9910e0b33a2e0f993abff41c6fbc86951b66d78
- https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/http-kernel/CVE-2020-15094.yaml
- https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2020-15094.yaml
- https://github.com/symfony/symfony
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HNGUWOEETOFVH4PN3I3YO4QZHQ4AUKF3
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VAQJXAKWPMWB7OL6QPG2ZSEQZYYPU5RC
- https://packagist.org/packages/symfony/http-kernel
- https://packagist.org/packages/symfony/symfony
- https://symfony.com/cve-2020-15094

## 实验层

- 仅用于自有资产、测试环境或已明确授权目标。
- 允许公网可达目标，但必须满足资产归属或明确授权前提。
- 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。
- 若该案例涉及插件、模块或扩展，应同时检查供应链与升级策略。
- 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

## 修复示例

- [javascript-typescript:xss-output-encoding](/Users/x/websafe/05-defense/secure-code/javascript-typescript/xss-output-encoding.md)
- [nodejs:xss-output-encoding](/Users/x/websafe/05-defense/secure-code/nodejs/xss-output-encoding.md)
- [java:xss-output-encoding](/Users/x/websafe/05-defense/secure-code/java/xss-output-encoding.md)
- [php:xss-output-encoding](/Users/x/websafe/05-defense/secure-code/php/xss-output-encoding.md)
- [python:xss-output-encoding](/Users/x/websafe/05-defense/secure-code/python/xss-output-encoding.md)
- [ruby:xss-output-encoding](/Users/x/websafe/05-defense/secure-code/ruby/xss-output-encoding.md)
- [csharp:xss-output-encoding](/Users/x/websafe/05-defense/secure-code/csharp/xss-output-encoding.md)
- [go:xss-output-encoding](/Users/x/websafe/05-defense/secure-code/go/xss-output-encoding.md)
- [javascript-typescript:authz-server-side-recheck](/Users/x/websafe/05-defense/secure-code/javascript-typescript/authz-server-side-recheck.md)
- [nodejs:authz-server-side-recheck](/Users/x/websafe/05-defense/secure-code/nodejs/authz-server-side-recheck.md)
- [java:authz-server-side-recheck](/Users/x/websafe/05-defense/secure-code/java/authz-server-side-recheck.md)
- [php:authz-server-side-recheck](/Users/x/websafe/05-defense/secure-code/php/authz-server-side-recheck.md)
- [python:authz-server-side-recheck](/Users/x/websafe/05-defense/secure-code/python/authz-server-side-recheck.md)
- [ruby:authz-server-side-recheck](/Users/x/websafe/05-defense/secure-code/ruby/authz-server-side-recheck.md)
- [csharp:authz-server-side-recheck](/Users/x/websafe/05-defense/secure-code/csharp/authz-server-side-recheck.md)
- [go:authz-server-side-recheck](/Users/x/websafe/05-defense/secure-code/go/authz-server-side-recheck.md)
- [javascript-typescript:path-traversal-guard](/Users/x/websafe/05-defense/secure-code/javascript-typescript/path-traversal-guard.md)
- [nodejs:path-traversal-guard](/Users/x/websafe/05-defense/secure-code/nodejs/path-traversal-guard.md)
- [java:path-traversal-guard](/Users/x/websafe/05-defense/secure-code/java/path-traversal-guard.md)
- [php:path-traversal-guard](/Users/x/websafe/05-defense/secure-code/php/path-traversal-guard.md)
- [python:path-traversal-guard](/Users/x/websafe/05-defense/secure-code/python/path-traversal-guard.md)
- [ruby:path-traversal-guard](/Users/x/websafe/05-defense/secure-code/ruby/path-traversal-guard.md)
- [csharp:path-traversal-guard](/Users/x/websafe/05-defense/secure-code/csharp/path-traversal-guard.md)
- [go:path-traversal-guard](/Users/x/websafe/05-defense/secure-code/go/path-traversal-guard.md)