Vulnerability identifier: #VU21941
Vulnerability risk: Low
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-200
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
MediaWiki
Web applications /
CMS
Vendor: MediaWiki.org
Description
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to Special:Redirect allows information disclosure of suppressed usernames via a User ID Lookup. A remote non-authenticated attacker can gain unauthorized access to sensitive information.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
MediaWiki: 1.33.0, 1.32.0 - 1.32.3, 1.31.0 - 1.31.3
External links
http://phabricator.wikimedia.org/T230402
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.