CVE-2015-8623

8.8 HIGH
Published: March 23, 2017 Modified: May 13, 2026
View on NVD

Description

The User::matchEditToken function in includes/User.php in MediaWiki before 1.23.12 and 1.24.x before 1.24.5 does not perform token comparison in constant time before returning, which allows remote attackers to guess the edit token and bypass CSRF protection via a timing attack, a different vulnerability than CVE-2015-8624.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://www.openwall.com/lists/oss-security/2015/12/21/8
Source: cve@mitre.org
Mailing List Patch Third Party Advisory
http://www.openwall.com/lists/oss-security/2015/12/23/7
Source: cve@mitre.org
Mailing List Patch Third Party Advisory
https://gerrit.wikimedia.org/r/#/c/156336/5/includes/User.php
Source: cve@mitre.org
Issue Tracking Third Party Advisory
https://lists.wikimedia.org/pipermail/mediawiki-announce/2015-December/000186.html
Source: cve@mitre.org
Patch Release Notes Vendor Advisory
https://phabricator.wikimedia.org/T119309
Source: cve@mitre.org
Patch Third Party Advisory
http://www.openwall.com/lists/oss-security/2015/12/21/8
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Patch Third Party Advisory
http://www.openwall.com/lists/oss-security/2015/12/23/7
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Patch Third Party Advisory
https://gerrit.wikimedia.org/r/#/c/156336/5/includes/User.php
Source: af854a3a-2127-422b-91ae-364da2661108
Issue Tracking Third Party Advisory
https://lists.wikimedia.org/pipermail/mediawiki-announce/2015-December/000186.html
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Release Notes Vendor Advisory
https://phabricator.wikimedia.org/T119309
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Third Party Advisory

10 reference(s) from NVD

Quick Stats

CVSS v3 Score
8.8 / 10.0
EPSS (Exploit Probability)
0.7%
50th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-352

Affected Vendors

mediawiki

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