All vulnerabilities
CVE-2026-103446

WikiLambda exposes anonymous execution of unsaved Abstract Wikipedia fragments

The Wikimedia Foundation MediaWiki WikiLambda extensionApplications & CMS
Open in ThreatlineRecord JSON
CVSS
7.4High
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.33%Chance of exploitation activity in the next 30 days, higher than 24% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version yet
Published30 Sep 2026Updated 6 Oct 2026CVE List

What fixes it

No source in this snapshot names a fixed version.

Description

Authorization bypass through User-Controlled key vulnerability in The Wikimedia Foundation MediaWiki WikiLambda extension allows Authentication Bypass.

This issue affects MediaWiki WikiLambda extension: 1.46.

Text from CVE List

Affected versions 1

  • MediaWiki WikiLambda extensionaffected: 1.46CVE List

References 2