Vulnerability · Published Oct 1, 2026 · Assigned by VulDB
CVE-2026-103687rhukster dom-sanitizer SVG Sanitization DOMSanitizer.php url incomplete blacklist
High 7.3
In plain English
A high-severity security flaw 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 0.4% (higher than 37% of all known vulnerabilities).
Official description
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 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-184, CWE-183 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
References
- VDB-412551 | rhukster dom-sanitizer SVG Sanitization DOMSanitizer.php url incomplete blacklist vdb-entry, technical-description
- VDB-412551 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
- CVE-2026-103687 | CVE Analysis and Report third-party-advisory
- Submit #958345 | rhukster dom-sanitizer <= 1.0.15 Improper Input Validation third-party-advisory
- https://github.com/rhukster/dom-sanitizer/security/advisories/GHSA-cjfg-j8jp-5xvc exploit
- https://github.com/rhukster/dom-sanitizer/commit/139c46c3d7c9bc81542b7b5a58d5cde5d0e0195a patch
- https://github.com/rhukster/dom-sanitizer/releases/tag/1.0.16 patch
- https://github.com/rhukster/dom-sanitizer/ product