vulnerability
MediaWiki: CVE-2015-8623: Cross-Site Request Forgery (CSRF)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:N/AC:M/Au:N/C:P/I:P/A:P) | Mar 23, 2017 | Aug 24, 2017 | May 6, 2026 |
Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
Mar 23, 2017
Added
Aug 24, 2017
Modified
May 6, 2026
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.
Solution
mediawiki-upgrade-latest
References
- CVE-2015-8623
- https://attackerkb.com/topics/CVE-2015-8623
- http://www.openwall.com/lists/oss-security/2015/12/21/8
- http://www.openwall.com/lists/oss-security/2015/12/23/7
- https://gerrit.wikimedia.org/r/#/c/156336/5/includes/User.php
- https://lists.wikimedia.org/pipermail/mediawiki-announce/2015-December/000186.html
- https://phabricator.wikimedia.org/T119309
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2015-8500
- CWE-352
- EUVD-EUVD-2015-8500
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