CVE-2026-96872— WikiLambda public function execution bypasses the unsaved-code permission through nested Z825 compositions
Quick assessment
Affected
The Wikimedia Foundation Mediawiki - WikiLambda Extension
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
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 -
Affected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| The Wikimedia Foundation | Mediawiki - WikiLambda Extension | < 1.47.0 |
affected |
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I. Basic Information for CVE-2026-96872
Vulnerability Information
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Vulnerability Title
WikiLambda public function execution bypasses the unsaved-code permission through nested Z825 compositions
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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/AU:Y
Source: CVE Program / CVE List V5
Vulnerability Type
不充分权限或特权的处理不恰当
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| The Wikimedia Foundation | Mediawiki - WikiLambda Extension | 0 ~ 1.47.0 | - |
|
II. Public POCs for CVE-2026-96872
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2026-96872 (1)
Other References for CVE-2026-96872 (1)
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V. Comments for CVE-2026-96872
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