CVE-2026-103687: rhukster dom-sanitizer SVG Sanitization DOMSanitizer.php url incomplete blacklist
A vulnerability has been found in rhukster dom-sanitizer up to 1.0.15. The affected element is the function url of the file src/DOMSanitizer.php of the component SVG Sanitization. Such manipulation leads to incomplete blacklist. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 1.0.16 is sufficient to fix this issue. The name of the patch is 139c46c3d7c9bc81542b7b5a58d5cde5d0e0195a. Upgrading the affected component is recommended.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
rhukster dom-sanitizerto a version that resolves this vulnerability.Fixed in 1.0.16Patch 139c46c3d7c9bc81542b7b5a58d5cde5d0e0195a
Event History
Frequently Asked Questions
Which deployments are affected?
Deployments using composer/rhukster/dom-sanitizer through version 1.0.15 are affected. Version 1.0.16 fixes the issue.
Can this be exploited remotely without authentication?
Yes. The supplied severity vector indicates network attack access, low attack complexity, no privileges required, and no user interaction required. Public exploit disclosure is reported.
What should teams do if they identify an affected version?
Upgrade rhukster dom-sanitizer to version 1.0.16. The documented patch identifier is 139c46c3d7c9bc81542b7b5a58d5cde5d0e0195a.