RCE in Rhukster Dom-Sanitizer
CVE-2026-103686
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Rhukster Dom-Sanitizer — versions 1.0.0, 1.0.1, 1.0.10
Weakness classification (CWE)
References
- vuldb.com/vuln/412550 (technical-description, vdb-entry)
- vuldb.com/vuln/412550/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-103686 (third-party-advisory)
- vuldb.com/submit/958312 (third-party-advisory)
- github.com/rhukster/dom-sanitizer/security/advisories/GHSA-mrpv-6x26-mf6c (exploit)
- github.com/rhukster/dom-sanitizer/commit/4623b565d060bc02ca5a07d8c8241fe28e2edf… (patch)
- github.com/rhukster/dom-sanitizer/releases/tag/1.0.16 (patch)
- github.com/rhukster/dom-sanitizer/ (product)
Frequently asked questions
- What is CVE-2026-103686?
- CVE-2026-103686 is a low-severity vulnerability in Rhukster Dom-Sanitizer, classified under Cross-site Scripting. CVSS score: 3.5/10. Published 2026-10-01.
- How severe is CVE-2026-103686?
- Low severity. CVSS v3 base score is 3.5 out of 10.