CVE-2025-55166

svg-sanitizer By-Passing Attribute Sanitization

CVSS 5.1 MEDIUMEPSS 0.4%CWE-601 CWE-79

savg-sanitizer is a PHP SVG/XML sanitizer. Prior to version 0.22.0, the sanitization logic in the cleanXlinkHrefs method only searches for lower-case attribute name, which allows to by-pass the isHrefSafeValue check. As a result this allows cross-site scripting or linking to external domains. This issue has been patched in version 0.22.0.

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

Affected products

darylldoyle · svg-sanitizer

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References

https://github.com/darylldoyle/svg-sanitizer/commit/5a0a1eaf0c6b0b540dc945fe30c93cf106b357c1 https://github.com/darylldoyle/svg-sanitizer/security/advisories/GHSA-22wq-q86m-83fh