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Vulnerability · Published Sep 30, 2026 · Assigned by wikimedia-foundation

CVE-2026-103585attacker-controlled javascript license URL via XSS

Low 1.2

In plain English

A low-severity security flaw in MediaWiki MediaSearch extension from The Wikimedia Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 23% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.

Severity (CVSS 4.0)1.2Low
Exploit odds (30 days)0.3%top 76.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack tooling1Public PoC

Official description

Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in The Wikimedia Foundation MediaWiki MediaSearch extension allows Cross-Site Scripting (XSS). This issue affects MediaWiki MediaSearch extension: 1.46, 1.45, and 1.43.

Affected products (as reported)

VendorProductVersions
The Wikimedia Foundation MediaWiki MediaSearch extension 1.461.451.43

Weakness: CWE-80 · Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/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

References