CVE-2026-96872

WikiLambda public function execution bypasses the unsaved-code permission through nested Z825 compositions

LOW

2.9

CVSS Score

Published: September 23, 2026 at 06:50 PM UTC

Updated: September 24, 2026 at 08:17 PM UTC

1 product affected across 1 vendorWikiLambda

Using Mediawiki - WikiLambda Extension by The Wikimedia Foundation?

Get instant alerts when new vulnerabilities affect Mediawiki - WikiLambda Extension - before attackers find them.

Real-time alertsTrack your software stackFree plan available

Start Free Sign In

Severity

LOW2.9

Exploit prediction

EPSS 0.3%

SSVC

No known exploit

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.

Affected

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

WikiLambda · Wikimedia

60%

v < 1.47.0

Affected range stops below 1.47.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

Source: cverecord

https://phabricator.wikimedia.org/T435085

Source: cverecord

https://gerrit.wikimedia.org/r/c/mediawiki/extensions/WikiLambda/+/1326392

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

2.9LOWwikimedia-foundation

Vector?

Quick Info

StatusAWAITING ANALYSIS

CWE

CWE-280

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create account Sign in

Free plan, no card