CVE-2015-8001
The chunked upload API (ApiUpload) in MediaWiki before 1.23.11, 1.24.x before 1.24.4, and 1.25.x...
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 does not restrict the uploaded data to the claimed file size, which allows remote authenticated users to cause a denial of service via a chunk that exceeds the file size.
Exploit likelihood
What each source reports
NVD Score used
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 does not restrict the uploaded data to the claimed file size, which allows remote authenticated users to cause a denial of service via a chunk that exceeds the file size.
- Record
CVE-2015-8001- CVSS 2.0
- 3.5 Low
AV:N/AC:M/Au:S/C:N/I:N/A:P - Weakness
- CWE-284
- Updated
- 2026-11-02
CVE List No score
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 does not restrict the uploaded data to the claimed file size, which allows remote authenticated users to cause a denial of service via a chunk that exceeds the file size.
- Record
CVE-2015-8001- Updated
- 2026-11-02
EUVDEUVD-2015-7897 No score
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 does not restrict the uploaded data to the claimed file size, which allows remote authenticated users to cause a denial of service via a chunk that exceeds the file size.
- Record
EUVD-2015-7897- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-7w48-ffwf-583v No score
The chunked upload API (ApiUpload) in MediaWiki before 1.23.11, 1.24.x before 1.24.4, and 1.25.x...
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 does not restrict the uploaded data to the claimed file size, which allows remote authenticated users to cause a denial of service via a chunk that exceeds the file size.
- Record
GHSA-7w48-ffwf-583v- Weakness
- CWE-284
- Updated
- 2026-11-02
OSV No score
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 does not restrict the uploaded data to the claimed file size, which allows remote authenticated users to cause a denial of service via a chunk that exceeds the file size.
- Record
CVE-2015-8001- Updated
- 2026-11-02
OSVDEBIAN-CVE-2015-8001 No score
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 does not restrict the uploaded data to the claimed file size, which allows remote authenticated users to cause a denial of service via a chunk that exceeds the file size.
- Record
DEBIAN-CVE-2015-8001- Updated
- 2026-11-02
OSVMGASA-2015-0421 No score
Updated mediawiki packages fix security vulnerabilities
Updated mediawiki packages fix security vulnerabilities:
In MediaWiki before 1.23.11, the API failed to correctly stop adding new chunks to the upload when the reported size was exceeded, allowing a malicious user to upload add an infinite number of chunks for a single file upload (CVE-2015-8001).
In MediaWiki before 1.23.11, a malicious user could upload chunks of 1 byte for very large files, potentially creating a very large number of files on the server's filesystem (CVE-2015-8002).
In MediaWiki before 1.23.11, it is not possible to throttle file uploads, or in other words, rate limit them (CVE-2015-8003).
In MediaWiki before 1.23.11, a missing authorization check when removing suppression from a revision allowed users with the 'viewsuppressed' user right but not the appropriate 'suppressrevision' user right to unsuppress revisions (CVE-2015-8004).
In MediaWiki before 1.23.11, thumbnails of PNG files generated with ImageMagick contained the local file path in the image (CVE-2015-8005).
- Record
MGASA-2015-0421- Updated
- 2026-11-02
OSVUBUNTU-CVE-2015-8001 No score
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 does not restrict the uploaded data to the claimed file size, which allows remote authenticated users to cause a denial of service via a chunk that exceeds the file size.
- Record
UBUNTU-CVE-2015-8001- Updated
- 2026-11-02
Affected products
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| affected | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2015-8001 is a low vulnerability (CVSS 3.5) in Mediawiki, published November 2, 2015. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.57%, the 75th percentile. Fixed in mediawiki 1:1.25.5-1.