Description
The FileImporter extension in MediaWiki through 1.35.0 was not properly attributing various user actions to a specific user's IP address. Instead, for various actions, it would report the IP address of an internal Wikimedia Foundation server by omitting X-Forwarded-For data. This resulted in an inability to properly audit and attribute various user actions performed via the FileImporter extension.
References (2)
Core 2
Core References
Exploit, Patch, Vendor Advisory x_refsource_misc
https://phabricator.wikimedia.org/T265810
Exploit, Patch, Vendor Advisory x_refsource_misc
https://gerrit.wikimedia.org/r/q/I24a240253c7a5c66dd493a68e8c23d95a17e1b21
Scores
CVSS v3
4.3
EPSS
0.0026
EPSS Percentile
49.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Details
Status
published
Products (1)
mediawiki/mediawiki
< 1.35.0
Published
Oct 22, 2020
Tracked Since
Feb 18, 2026