Vulnerability Description
Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 6.4.24 until 6.4.40, 7.4.12, and 8.0.12, the development profiler file_excerpt Twig filter escapes PHP files through highlight_string() but interpolates lines from non-PHP files directly into <code> elements, allowing stored XSS against a developer who opens an attacker-written file such as var/log/dev.log in the profiler. This issue is fixed in versions 6.4.40, 7.4.12, and 8.0.12.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Sensiolabs | Symfony | >= 6.4.24, < 6.4.40 |
Related Weaknesses (CWE)
References
- https://github.com/symfony/symfony/commit/863aa81c61166f1aa74b7732df316f76113acbPatch
- https://github.com/symfony/symfony/releases/tag/v6.4.40Release Notes
- https://github.com/symfony/symfony/releases/tag/v7.4.12Release Notes
- https://github.com/symfony/symfony/releases/tag/v8.0.12Release Notes
- https://github.com/symfony/symfony/security/advisories/GHSA-hmr5-2xcr-v8ppPatchVendor Advisory
FAQ
What is CVE-2026-45072?
CVE-2026-45072 is a vulnerability with a CVSS score of 5.4 (MEDIUM). Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 6.4.24 until 6.4.40, 7.4.12, and 8.0.12, the development profiler file_excerpt Twig filter escape...
How severe is CVE-2026-45072?
CVE-2026-45072 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-45072?
Check the references section above for vendor advisories and patch information. Affected products include: Sensiolabs Symfony.