The MWOAuthDataStore::lookup_token function in Extension:OAuth for MediaWiki 1.25.x…
Priority MEDIUM 47CWE-255Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
The MWOAuthDataStore::lookup_token function in Extension:OAuth for MediaWiki 1.25.x before 1.25.3, 1.24.x before 1.24.4, and before 1.23.11 does not properly validate the signature when checking the authorization signature, which allows remote registered Consumers to use another Consumer's credentials by leveraging knowledge of the credentials.
Why it matters now
EPSS 0.02566 85th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
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 |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:* | up to 1.23.10 | Vulnerable | mediawiki |
| cpe:2.3:a:mediawiki:mediawiki:1.24.0:*:*:*:*:*:*:* | 1.24.0 | Vulnerable | mediawiki |
| cpe:2.3:a:mediawiki:mediawiki:1.24.1:*:*:*:*:*:*:* | 1.24.1 | Vulnerable | mediawiki |
| cpe:2.3:a:mediawiki:mediawiki:1.24.2:*:*:*:*:*:*:* | 1.24.2 | Vulnerable | mediawiki |
| cpe:2.3:a:mediawiki:mediawiki:1.24.3:*:*:*:*:*:*:* | 1.24.3 | Vulnerable | mediawiki |
| cpe:2.3:a:mediawiki:mediawiki:1.25.0:*:*:*:*:*:*:* | 1.25.0 | Vulnerable | mediawiki |
| cpe:2.3:a:mediawiki:mediawiki:1.25.1:*:*:*:*:*:*:* | 1.25.1 | Vulnerable | mediawiki |
| cpe:2.3:a:mediawiki:mediawiki:1.25.2:*:*:*:*:*:*:* | 1.25.2 | Vulnerable | mediawiki |
- cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:* Versions up to 1.23.10 Vulnerable ·mediawiki
- cpe:2.3:a:mediawiki:mediawiki:1.24.0:*:*:*:*:*:*:* Versions 1.24.0 Vulnerable ·mediawiki
- cpe:2.3:a:mediawiki:mediawiki:1.24.1:*:*:*:*:*:*:* Versions 1.24.1 Vulnerable ·mediawiki
- cpe:2.3:a:mediawiki:mediawiki:1.24.2:*:*:*:*:*:*:* Versions 1.24.2 Vulnerable ·mediawiki
- cpe:2.3:a:mediawiki:mediawiki:1.24.3:*:*:*:*:*:*:* Versions 1.24.3 Vulnerable ·mediawiki
- cpe:2.3:a:mediawiki:mediawiki:1.25.0:*:*:*:*:*:*:* Versions 1.25.0 Vulnerable ·mediawiki
- cpe:2.3:a:mediawiki:mediawiki:1.25.1:*:*:*:*:*:*:* Versions 1.25.1 Vulnerable ·mediawiki
- cpe:2.3:a:mediawiki:mediawiki:1.25.2:*:*:*:*:*:*:* Versions 1.25.2 Vulnerable ·mediawiki
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2015-8009
- 2026-10-03 Alias added: GHSA-4p7h-6j8x-q68w
References
More Mediawiki vulnerabilities
- TI-2023-18933 An issue was discovered in the CheckUser extension for MediaWiki through 1.39.3. CVSS 3.1CRITICAL 9.8
- TI-2023-13576 An issue was discovered in MediaWiki before 1.35.10, 1.36.x through 1.38.x before 1.38.6… CVSS 3.1CRITICAL 9.8
- TI-2023-03312 Stored XSS leads to privilege escalation in MediaWiki v1.40.0 CVSS 3.1CRITICAL 9.0
- TI-2026-42109 Cross-site request forgery in Wikimedia Foundation Mediawiki - RedirectManager Extension CVSS 4.0MEDIUM 6.9
- TI-2024-22822 An issue was discovered in includes/CommentFormatter/CommentParser.php in MediaWiki… CVSS 3.1HIGH 7.4
- TI-2023-18935 An issue was discovered in the ProofreadPage (aka Proofread Page) extension for MediaWiki… CVSS 3.1MEDIUM 5.3
Sources
- CVE-2015-8009 · CVE Program
- CVE-2015-8009 · NVD
- FIRST EPSS
- GHSA-4p7h-6j8x-q68w · GitHub Advisory Database · CC BY 4.0
- CVE-2015-8009 · 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