Open redirect in MediaWiki

1) Open redirect

EUVDB-ID: #VU41111

Risk: Low

CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-10959

CWE-ID: CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

resources/src/mediawiki.page.ready/ready.js in MediaWiki before 1.35 allows remote attackers to force a logout and external redirection via HTML content in a MediaWiki page.

Mitigation

Install update from vendor's website.

Vulnerable software versions

MediaWiki: 1.1.0 - 1.34.2

External links

http://gerrit.wikimedia.org/r/c/mediawiki/core/+/536725
http://phabricator.wikimedia.org/T232932
http://phabricator.wikimedia.org/T240393

Q & A

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.