[ CVE-2026-96872 · Published 23 Sep 2026 ]

Vulnerability in The Wikimedia Foundation Mediawiki - WikiLambda Extension

CVSS 2.9 EPSS <1%1 agency advisoryNo fix listed yet

[ Description ]Official description

Improper handling of insufficient permissions or privileges vulnerability in The Wikimedia Foundation Mediawiki - WikiLambda Extension on Linux, MacOS, and Windows allows Accessing Functionality Not Properly Constrained by ACLs. This issue affects Mediawiki - WikiLambda Extension: before 1.47.0.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

BSI CERT-Bund23 Sep 2026WID-SEC-2026-3550

MediaWiki: Vulnerability allows information disclosure Translated from German
CVE-2026-96872

[ References ]References

[ Facts ]Key facts

CVE: CVE-2026-96872
EUVD: EUVD-2026-85562
Published: 23 Sep 2026, 19:19 UTC
Updated: 24 Sep 2026, 20:02 UTC
NVD status: Awaiting Analysis
CVSS 4.0: 2.9 Low
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:X/V:X/RE:X/U:X
Scored by c4f26cc8-17ff-4c99-b5e2-38fc1793eacc
EPSS: 0.23% chance of exploitation in 30 days · higher than 13% of CVEs
CISA SSVC: Exploitation: none · Automatable: no · Impact: partial
Weakness: CWE-280

[ Affected ]Affected products

The Wikimedia Foundation Mediawiki - WikiLambda Extension< 1.47.0

[ Description ]Official description

[ Fixes ]Fixes and patches

[ Advisories ]Government CERT advisories

MediaWiki: Vulnerability allows information disclosure Translated from German

[ References ]References