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CVE-2026-103686

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

LOW
3.5
CVSS Score
Published: October 1, 2026 at 01:45 PM UTC
Updated: October 6, 2026 at 02:17 AM UTC
1 product affected across 1 vendorDOMSanitizer

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Severity
LOW3.5
Exploit prediction
EPSS 0.2%
SSVC
PoC

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (8)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/412550
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/412550/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/cve/CVE-2026-103686
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/958312
Exploit
Source: cverecord
https://github.com/rhukster/dom-sanitizer/security/advisories/GHSA-mrpv-6x26-mf6c
Patch
Source: cverecord
https://github.com/rhukster/dom-sanitizer/commit/4623b565d060bc02ca5a07d8c8241fe28e2edfda
Patch
Source: cverecord
https://github.com/rhukster/dom-sanitizer/releases/tag/1.0.16
Product
Source: cverecord
https://github.com/rhukster/dom-sanitizer/

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

3.5LOWVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-79CWE-94

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