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CVE-2026-48761

Symfony: HtmlSanitizer UrlAttributeSanitizer Misses URL Attributes on <object>, <applet>, <iframe>, <img> and the URL Inside <meta http-equiv="refresh"> content PUBLISHED

Description (CNA)

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 6.1.0 until 6.4.41, 7.4.13, and 8.0.13, UrlAttributeSanitizer::getSupportedAttributes() omitted URL-bearing attributes on <object>, <applet>, <iframe>, and <img>, and <meta http-equiv="refresh"> URLs inside content bypassed URL sanitization, allowing explicitly enabled elements or attributes to pass javascript: and similar payloads into sanitized output. This issue is fixed in versions 6.4.41, 7.4.13, and 8.0.13.

Affected (CNA)

Vendor / productVersions
symfony / symfonyaffected >= 6.1.0, < 6.4.41; affected >= 7.0.0-BETA1, < 7.4.13; affected >= 8.0.0-BETA1, < 8.0.13
symfony / html-sanitizeraffected >= 6.1.0, < 6.4.41; affected >= 7.0.0-BETA1, < 7.4.13; affected >= 8.0.0-BETA1, < 8.0.13

CWE

CWE-79, CWE-1023

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.