The chunked upload API (ApiUpload) in MediaWiki before 1.23.11, 1.24.x before 1.24.4, and…
Priority LOW 33CWE-399Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Complete
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-399 and the CVSS impact.
Summary
The chunked upload API (ApiUpload) in MediaWiki before 1.23.11, 1.24.x before 1.24.4, and 1.25.x before 1.25.3 allows remote authenticated users to cause a denial of service (disk consumption) via a file upload using one byte chunks.
Why it matters now
EPSS 0.01515 74th percentileScored 2026-11-07
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-2015-8002
- 2026-10-03 Alias added: GHSA-pgp4-g94c-393r
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-2015-8002 · CVE Program
- CVE-2015-8002 · NVD
- FIRST EPSS
- GHSA-pgp4-g94c-393r · GitHub Advisory Database · CC BY 4.0
- CVE-2015-8002 · 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