Vulnerability in MediaWiki
CVE-2015-8009
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.025 (84.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 84.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.025 · newest: 0.025 · change: 0.000
Affected products
- MediaWiki — versions 1.24.0, 1.24.1, 1.24.2
Weakness classification (CWE)
References
- www.securitytracker.com/id/1034028 (vdb-entry)
- phabricator.wikimedia.org/T103023 (Exploit, Third Party Advisory)
- www.openwall.com/lists/oss-security/2015/10/29/14 (mailing-list, Mailing List, VDB Entry)
Frequently asked questions
- What is CVE-2015-8009?
- CVE-2015-8009 is a critical-severity vulnerability in MediaWiki, classified under CWE-255. CVSS score: 9.8/10. Published 2017-07-25.
- How severe is CVE-2015-8009?
- Critical severity. CVSS v3 base score is 9.8 out of 10.