CVE-2026-103686 PUBLISHED

A flaw has been found in rhukster dom-sanitizer up to 1.0.15. Impacted is the function DOMSanitizer::isDangerousUrl of the file src/DOMSanitizer.php of the component URL Validation. This manipulation causes cross site scripting. It is possible to initiate the attack remotely. The exploit has been published and may be used. Upgrading to version 1.0.16 is recommended to address this issue. Patch name: 4623b565d060bc02ca5a07d8c8241fe28e2edfda. It is suggested to upgrade the affected component.

• 0xMo-Error (VulDB User) reporter

• VDB-412550 | rhukster dom-sanitizer URL Validation DOMSanitizer.php isDangerousUrl cross site scripting
• VDB-412550 | CTI Indicators (IOB, IOC, TTP, IOA)
• CVE-2026-103686 | CVE Analysis and Report
• Submit #958312 | rhukster dom-sanitizer <= 1.0.15 Improper Input Validation
• https://github.com/rhukster/dom-sanitizer/security/advisories/GHSA-mrpv-6x26-mf6c
• https://github.com/rhukster/dom-sanitizer/commit/4623b565d060bc02ca5a07d8c8241fe28e2edfda
• https://github.com/rhukster/dom-sanitizer/releases/tag/1.0.16
• https://github.com/rhukster/dom-sanitizer/

• Cross Site Scripting CWE
• Code Injection CWE