CVE-2015-8009

Name: CVE-2015-8009
Creator: NVD / NIST
Published: 2017-07-25T14:29:00.223+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.50%

Last modified Jun 17, 2026

CVE-2015-8009 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 2.50% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

2.50%

82.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-255

Affected Software

Vendor	Product	Versions
Mediawiki	Mediawiki	<= 1.23.10
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

References

http://www.openwall.com/lists/oss-security/2015/10/29/14Mailing List, VDB Entry
http://www.securitytracker.com/id/1034028
https://phabricator.wikimedia.org/T103023Exploit, Third Party Advisory
http://www.openwall.com/lists/oss-security/2015/10/29/14Mailing List, VDB Entry
http://www.securitytracker.com/id/1034028
https://phabricator.wikimedia.org/T103023Exploit, Third Party Advisory

Timeline

Published: Jul 25, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-8009?

How severe is CVE-2015-8009?

Severity scoring for CVE-2015-8009 is pending analysis. The EPSS model estimates a 2.50% probability of exploitation in the next 30 days.

How do I fix CVE-2015-8009?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2015-8009?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST