CVE-2026-45072: Symfony Vulnerable to stored XSS in WebProfiler CodeExtension::fileExcerpt() — Unescaped Non-PHP File Rendering

low Affects symfony/symfony, symfony/twig-bridge, symfony/web-profiler-bundle. Feed 2026.10.29.4, updated 2026-10-29; published 2026-05-27; advisory modified 2026-09-10.

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

Package: symfony/symfony Composer
Affected versions: >=6.4.24 and <6.4.40 or >=7.2.9 and <7.4.12 or >=8.0.0 and <8.0.12 or >=7.2.9 and <7.3.0 or >=7.3.0 and <7.4.0 or >=7.4.0 and <7.4.12
Fixed in: 6.4.40, 7.4.12, 8.0.12
Severity: low
Exploitation: not on CISA KEV · EPSS 0% (23.3th percentile)
Published: 2026-05-27
Source: osv.dev

References

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

Package: symfony/twig-bridge Composer
Affected versions: >=6.4.24 and <6.4.40
Fixed in: 6.4.40
Severity: low
Exploitation: not on CISA KEV · EPSS 0% (23.3th percentile)
Published: 2026-05-27
Source: osv.dev

References

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

Package: symfony/web-profiler-bundle Composer
Affected versions: >=7.2.9 and <7.4.12 or >=8.0.0 and <8.0.12 or >=7.2.9 and <7.3.0 or >=7.3.0 and <7.4.0 or >=7.4.0 and <7.4.12
Fixed in: 7.4.12, 8.0.12
Severity: low
Exploitation: not on CISA KEV · EPSS 0% (23.3th percentile)
Published: 2026-05-27
Source: osv.dev

References

CWE-79

NVD record symfony/symfony advisories symfony/twig-bridge advisories symfony/web-profiler-bundle advisories

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