CVE-2026-103686

rhukster dom-sanitizer URL Validation DOMSanitizer.php isDangerousUrl cross site scripting

State: Published
Severity: 5.1 Medium
Published: Oct 1, 2026
Updated: Oct 6, 2026
Reserved: Oct 1, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	5.1 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P	VulDB
3.1	3.5 Low	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	VulDB
3.0	3.5 Low	CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C	VulDB
2.0	4.0 Medium	AV:N/AC:L/Au:S/C:N/I:P/A:N/E:POC/RL:OF/RC:C	VulDB

Weaknesses

CWE-79 Cross Site Scripting
CWE-94 Code Injection

Affected Products

Product	Versions
dom-sanitizerrhukster	1.0.0Affected 1.0.1Affected 1.0.2Affected 1.0.3Affected 1.0.4Affected 1.0.5Affected 1.0.6Affected 1.0.7Affected 1.0.8Affected 1.0.9Affected 1.0.10Affected 1.0.11Affected 1.0.12Affected 1.0.13Affected 1.0.14Affected 1.0.15Affected 1.0.16Not affected

References

VDB-412550 | rhukster dom-sanitizer URL Validation DOMSanitizer.php isDangerousUrl cross site scriptingvdb-entrytechnical-description
VDB-412550 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
CVE-2026-103686 | CVE Analysis and Reportthird-party-advisory
Submit #958312 | rhukster dom-sanitizer <= 1.0.15 Improper Input Validationthird-party-advisory
https://github.com/rhukster/dom-sanitizer/security/advisories/GHSA-mrpv-6x26-mf6cexploit
https://github.com/rhukster/dom-sanitizer/commit/4623b565d060bc02ca5a07d8c8241fe28e2edfdapatch
https://github.com/rhukster/dom-sanitizer/releases/tag/1.0.16patch
https://github.com/rhukster/dom-sanitizer/product

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