CVE-2026-103437

ReadingLists imported metadata permits JavaScript URL XSS

Published Sep 30, 2026 CVSS 4.0 · 1.1 Low EPSS < 1% KEV · Not listed
Description
Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in The Wikimedia Foundation MediaWiki ReadingLists extension allows Reflected XSS.

This issue affects MediaWiki ReadingLists extension: 1.46 and 1.45.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Wikimedia
Wikimedia mediawiki-readinglists Extension
Vendors & Products Wikimedia
Wikimedia mediawiki-readinglists Extension
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in The Wikimedia Foundation MediaWiki ReadingLists extension allows Reflected XSS. This issue affects MediaWiki ReadingLists extension: 1.46 and 1.45.
Title ReadingLists imported metadata permits JavaScript URL XSS
Weaknesses CWE-80
References
Metrics cvssV4_0

{'score': 1.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:P/S:N/AU:Y/R:U/V:D/RE:M/U:Amber'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
wikimedia-foundation
Published
Updated
Sep 30, 2026, 8:01 PM
Reserved
Sep 30, 2026, 3:41 PM
Status
Awaiting Analysis
Published
Sep 30, 2026, 6:18 PM
Modified
Sep 30, 2026, 9:17 PM