CVE-2026-45072

描述

### Description Symfony's profiler, a development only debug UI, renders source-code excerpts on several pages using Twig's custom `file_excerpt` filter. This filter renders PHP files via `highlight_string()` (which escapes HTML), but renders **non-PHP files** by splitting on `\n` and interpolating each line directly into `<code>{$line}</code>` with no escaping. An attacker who can write arbitrary bytes into any file under the project root (including e.g. `var/log/dev.log`), achieves **stored XSS** against any developer who later opens that file in the profiler. ### Resolution The `file_excerpt` filter now properly escapes each line of non-PHP files using `htmlspecialchars()` before concatenating them. The patch for this issue is available [here](https://github.com/symfony/symfony/commit/863aa81c61166f1aa74b7732df316f76113acbdb) for branch 6.4. ### Credits Symfony would like to thank Claude Mythos Preview (via Project Glasswing) for reporting the issue and providing the fix.

如何修補 CVE-2026-45072

要修補 CVE-2026-45072,請將受影響套件升級到下列已修補版本。

• —升級至 6.4.41+dfsg-0+deb13u1 或更新版本

CVE-2026-45072 正在被利用嗎?

低 — EPSS 為 0.2%,目前沒有觀察到大規模利用活動。

受影響套件(1)

• from 0, < 6.4.41+dfsg-0+deb13u1

CVSS 分數

參考連結(1)

• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2026-45072