Vulnerability identifier: #VU59676
Vulnerability risk: Low
CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-79
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
MediaWiki
Web applications /
CMS
Vendor: MediaWiki.org
Description
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data in Special:CheckUserLog. A remote authenticated attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
MediaWiki: 1.35 - 1.35.4, 1.36.0 - 1.36.2, 1.37.0
External links
http://lists.wikimedia.org/hyperkitty/list/mediawiki-announce@lists.wikimedia.org/thread/GRAEVDH5HQ5DJWVJC54JYJFUSMBRZX44/
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.