Session fixation in Wikimedia Foundation MediaWiki
Priority LOW 37CWE-384Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-384.
Summary
The CentralNotice extension for MediaWiki before 1.19.9, 1.20.x before 1.20.8, and 1.21.x before 1.21.3 sets the Cache-Control header to cache session cookies when a user is autocreated, which allows remote attackers to authenticate as the created user.
Why it matters now
EPSS 0.02142 82nd percentileScored 2026-11-07
Fix Fixed MediaWiki (Wikimedia Foundation): 1.19.9, 1.20.8, 1.21.3
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Wikimedia Foundation | MediaWiki | before 1.19.9; 1.20 to before 1.20.8; 1.21 to before 1.21.3 | 1.19.9, 1.20.8, 1.21.3 | Patch available | CNA |
- MediaWiki VendorWikimedia Foundation Affected before 1.19.9; 1.20 to before 1.20.8; 1.21 to before 1.21.3 Fixed in 1.19.9, 1.20.8, 1.21.3 Patch available CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:* | before 1.19.9; 1.20 to before 1.20.8; 1.21 to before 1.21.3 | Vulnerable | mediawiki |
| cpe:2.3:o:fedoraproject:fedora:18:*:*:*:*:*:*:* | 18 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:19:*:*:*:*:*:*:* | 19 | Vulnerable | Fedoraproject |
- cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:* Versions before 1.19.9; 1.20 to before 1.20.8; 1.21 to before 1.21.3 Vulnerable ·mediawiki
- cpe:2.3:o:fedoraproject:fedora:18:*:*:*:*:*:*:* Versions 18 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:19:*:*:*:*:*:*:* Versions 19 Vulnerable ·Fedoraproject
Remediation
- Fix · CNA MediaWiki (Wikimedia Foundation) Fixed in 1.19.9, 1.20.8, 1.21.3
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2013-4572
- 2026-10-03 Alias added: GHSA-xg89-j94m-h233
References
More Wikimedia Foundation vulnerabilities
- TI-2025-11006 The compare API module breaks Extension:Lockdown CVSS 4.0CRITICAL 10.0
- 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
Sources
- CVE-2013-4572 · CVE Program
- CVE-2013-4572 · NVD
- FIRST EPSS
- GHSA-xg89-j94m-h233 · GitHub Advisory Database · CC BY 4.0
- CVE-2013-4572 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences