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Description

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.

PUBLISHED Reserved 2026-05-22 | Published 2026-07-14 | Updated 2026-07-14 | Assigner GitHub_M




MEDIUM: 5.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

Problem types

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CWE-1023: Incomplete Comparison with Missing Factors

Product status

>= 6.1.0, < 6.4.41
affected

>= 7.0.0-BETA1, < 7.4.13
affected

>= 8.0.0-BETA1, < 8.0.13
affected

>= 6.1.0, < 6.4.41
affected

>= 7.0.0-BETA1, < 7.4.13
affected

>= 8.0.0-BETA1, < 8.0.13
affected

References

github.com/...ymfony/security/advisories/GHSA-x5qj-865h-mgvm

github.com/...ommit/069a70f9f26e61e9de3b7f9a864a86ed24b36bd0

github.com/symfony/symfony/releases/tag/v6.4.41

github.com/symfony/symfony/releases/tag/v7.4.13

github.com/symfony/symfony/releases/tag/v8.0.13

cve.org (CVE-2026-48761)

nvd.nist.gov (CVE-2026-48761)

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