Packagist/symfony/symfony CVE-2026-45072: medium 5.4, EPSS 0.30%

Symfony Vulnerable to stored XSS in WebProfiler CodeExtension::fileExcerpt() — Unescaped Non-PHP File Rendering

Action: Upgrade symfony/symfony to 6.4.40 or later.

composer require symfony/symfony:6.4.40

composer require symfony/symfony:7.4.12

composer require symfony/symfony:8.0.12

Affected

Fixed versions

Sources

• osv: GHSA-hmr5-2xcr-v8pp
• nvd: CVE-2026-45072
• https://github.com/symfony/symfony/security/advisories/GHSA-hmr5-2xcr-v8pp
• https://github.com/symfony/symfony/commit/863aa81c61166f1aa74b7732df316f76113acbdb
• https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2026-45072.yaml
• https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/twig-bridge/CVE-2026-45072.yaml
• https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/web-profiler-bundle/CVE-2026-45072.yaml
• https://github.com/symfony/symfony
• https://symfony.com/cve-2026-45072

CVE-2026-45072 · published 2026-05-27T21:10:44Z · modified 2026-09-10T03:51:06.007105097Z · JSON