The compare API module breaks Extension:Lockdown
Priority HIGH 82CWE-732Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
Incorrect Permission Assignment for Critical Resource vulnerability in The Wikimedia Foundation Mediawiki - Lockdown Extension allows Privilege Abuse. Fixed in Mediawiki Core Action APIThis issue affects Mediawiki - Lockdown Extension: from master before 1.42.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00401 34th percentileScored 2026-11-07
Fix Fixed Mediawiki - Lockdown Extension (The Wikimedia Foundation): 1.42
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Wikimedia Foundation | Mediawiki - Lockdown Extension | master to before 1.42 | 1.42 | Patch available | CNA |
- Mediawiki - Lockdown Extension VendorWikimedia Foundation Affected master to before 1.42 Fixed in 1.42 Patch available CNA
Remediation
- Fix · CNA Mediawiki - Lockdown Extension (The Wikimedia Foundation) Fixed in 1.42
Timeline
- 2026-10-02 Threatist record created from CVE-2025-12004
- 2026-10-03 Alias added: GHSA-42p2-jfjf-9m59
References
More Wikimedia Foundation vulnerabilities
- TI-2024-32110 Backticks can allow the usage of not-allowed SQL functions CVSS 4.0HIGH 8.8
- TI-2026-65500 Unauthenticated SQL injection in UserPageViewTracker via filterusers and ignoreusers parameters CVSS 3.1HIGH 7.5
- TI-2026-64588 DataTransfer depends on phpspreadsheet version vulnerable to CVE-2026-59933 (XLS/OLE memory exhaustion) CVSS 3.1HIGH 7.5
- TI-2026-42112 SQLi in Cargo extension via year range filter CVSS 4.0MEDIUM 6.9
- TI-2026-42110 Stored XSS through Cargo's map format CVSS 4.0MEDIUM 6.9
- TI-2026-42109 Cross-site request forgery in Wikimedia Foundation Mediawiki - RedirectManager Extension CVSS 4.0MEDIUM 6.9
Sources
- CVE-2025-12004 · CVE Program
- CVE-2025-12004 · NVD
- FIRST EPSS
- GHSA-42p2-jfjf-9m59 · GitHub Advisory Database · CC BY 4.0
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