CVE-2015-8009

moderate-risk
Published 2017-07-25

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.

Do I need to act?

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0.34% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (8)

Affected Vendors

Mediawiki

References (6)

Mailing List http://www.openwall.com/lists/oss-security/2015/10/29/14
http://www.securitytracker.com/id/1034028
Exploit https://phabricator.wikimedia.org/T103023
Mailing List http://www.openwall.com/lists/oss-security/2015/10/29/14
http://www.securitytracker.com/id/1034028
Exploit https://phabricator.wikimedia.org/T103023
47
/ 100
moderate-risk
Severity 32/34 · Critical
Exploitability 1/34 · Minimal
Exposure 14/34 · Moderate