Description
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.
References (3)
Core 3
Core References
Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id/1034028
Exploit, Third Party Advisory x_refsource_confirm
https://phabricator.wikimedia.org/T103023
Mailing List, VDB Entry mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2015/10/29/14
Scores
CVSS v3
9.8
EPSS
0.0034
EPSS Percentile
57.1%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-255
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
Jul 25, 2017
Tracked Since
Feb 18, 2026