Description
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.
References (3)
Core 3
Core References
Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id/1034028
Patch, Vendor Advisory mailing-list
x_refsource_mlist
https://lists.wikimedia.org/pipermail/mediawiki-announce/2015-October/000181.html
Vendor Advisory x_refsource_confirm
https://phabricator.wikimedia.org/T91203
Scores
EPSS
0.0032
EPSS Percentile
55.5%
Details
CWE
CWE-284
Status
published
Products (8)
mediawiki/mediawiki
1.24.0
mediawiki/mediawiki
1.24.1
mediawiki/mediawiki
1.24.2
mediawiki/mediawiki
1.24.3
mediawiki/mediawiki
1.25.0
mediawiki/mediawiki
1.25.1
mediawiki/mediawiki
1.25.2
mediawiki/mediawiki
< 1.23.10
Published
Nov 09, 2015
Tracked Since
Feb 18, 2026