Vulnerability identifier: #VU56983
Vulnerability risk: Medium
CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-264
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
MediaWiki
Web applications /
CMS
Vendor: MediaWiki.org
Description
The vulnerability allows a remote attacker to bypass security checks.
The vulnerability exists due to application does not properly check permissions when executing jobs. A remote user can execute actions, such as global replacement of text in wiki articles even after their permissions have been revoked.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
MediaWiki: 1.36.0 - 1.36.1, 1.35 - 1.35.3, 1.34 - 1.34.4, 1.33.0 - 1.33.4, 1.32.0 - 1.32.6, 1.31.0 - 1.31.15, 1.30.0 - 1.30.2
External links
http://lists.wikimedia.org/hyperkitty/list/mediawiki-announce@lists.wikimedia.org/thread/2IFS5CM2YV4VMSODPX3J2LFHKSEWVFV5/
http://phabricator.wikimedia.org/T279090
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.