CVE-2026-45064

MEDIUM6.1

Symfony: HtmlSanitizer URL Attributes Pass Through BiDi Override Characters → Visual href Spoofing

Published Jul 14, 2026

Modified 2 weeks ago

Details

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 6.1.0-BETA1 until 6.4.40, 7.4.12, and 8.0.12, UrlSanitizer::parse() passes Unicode explicit-direction BiDi formatting characters through into sanitized href and src attributes, allowing sanitized content to display a link destination that visually differs from the actual destination and enabling phishing-style visual spoofing. This issue is fixed in versions 6.4.40, 7.4.12, and 8.0.12.

References

WEB

https://github.com/symfony/symfony/commit/743a435e948b897ef2b5564ac438d4beb95d2526

WEB

https://github.com/symfony/symfony/releases/tag/v6.4.40

WEB

https://github.com/symfony/symfony/releases/tag/v7.4.12

WEB

https://github.com/symfony/symfony/releases/tag/v8.0.12

WEB

https://github.com/symfony/symfony/security/advisories/GHSA-h5vq-qfcg-4m6p

ADVISORY