rhukster dom-sanitizer up to 1.0.15 SVG Sanitization src/DOMSanitizer.php url incomplete blacklist

Summaryinfo

A vulnerability classified as critical has been found in rhukster dom-sanitizer up to 1.0.15. The impacted element is the function url of the file src/DOMSanitizer.php of the component SVG Sanitization. Performing a manipulation results in incomplete blacklist. This vulnerability is identified as CVE-2026-103687. The attack can be initiated remotely. Additionally, an exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in rhukster dom-sanitizer up to 1.0.15. This affects the function url of the file src/DOMSanitizer.php of the component SVG Sanitization. The manipulation with an unknown input leads to a incomplete blacklist vulnerability. CWE is classifying the issue as CWE-184. The product implements a protection mechanism that relies on a list of inputs (or properties of inputs) that are not allowed by policy or otherwise require other action to neutralize before additional processing takes place, but the list is incomplete, leading to resultant weaknesses. This is going to have an impact on confidentiality, integrity, and availability.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-103687. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details and a public exploit are known. The attack technique deployed by this issue is T1562.006 according to MITRE ATT&CK.

The exploit is shared for download at github.com. It is declared as proof-of-concept. By approaching the search of inurl:src/DOMSanitizer.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 1.0.16 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 139c46c3d7c9bc81542b7b5a58d5cde5d0e0195a is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

• rhukster

Name

• dom-sanitizer

Version

• 1.0.0
• 1.0.1
• 1.0.2
• 1.0.3
• 1.0.4
• 1.0.5
• 1.0.6
• 1.0.7
• 1.0.8
• 1.0.9
• 1.0.10
• 1.0.11
• 1.0.12
• 1.0.13
• 1.0.14
• 1.0.15

License

• open-source

Website

• Product: https://github.com/rhukster/dom-sanitizer/

CPE 2.3info

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CPE 2.2info

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Entryinfo

Submitinfo

Accepted

• Submit #958345: rhukster dom-sanitizer <= 1.0.15 Improper Input Validation (by 0xMo-Error)

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