Vulnerability · Published Oct 1, 2026 · Assigned by VulDB
CVE-2026-103686rhukster dom-sanitizer URL Validation DOMSanitizer.php isDangerousUrl cross site scripting
Low 3.5
In plain English
A low-severity cross-site scripting in dom-sanitizer from rhukster. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 11% of all known vulnerabilities).
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| rhukster | dom-sanitizer | 1.0.01.0.11.0.21.0.31.0.41.0.51.0.61.0.7 |
Weakness: CWE-79, CWE-94 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C
References
- VDB-412550 | rhukster dom-sanitizer URL Validation DOMSanitizer.php isDangerousUrl cross site scripting vdb-entry, technical-description
- VDB-412550 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
- CVE-2026-103686 | CVE Analysis and Report third-party-advisory
- Submit #958312 | rhukster dom-sanitizer <= 1.0.15 Improper Input Validation third-party-advisory
- https://github.com/rhukster/dom-sanitizer/security/advisories/GHSA-mrpv-6x26-mf6c exploit
- https://github.com/rhukster/dom-sanitizer/commit/4623b565d060bc02ca5a07d8c8241fe28e2edfda patch
- https://github.com/rhukster/dom-sanitizer/releases/tag/1.0.16 patch
- https://github.com/rhukster/dom-sanitizer/ product