Input validation error in MediaWiki and Debian Linux - CVE-2017-8811

 

Input validation error in MediaWiki and Debian Linux - CVE-2017-8811

Published: November 15, 2017 / Updated: August 8, 2020


Vulnerability identifier: #VU37968
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2017-8811
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: MediaWiki.org
Debian
Affected software:
MediaWiki
Debian Linux

Detailed vulnerability description

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

The implementation of raw message parameter expansion in MediaWiki before 1.27.4, 1.28.x before 1.28.3, and 1.29.x before 1.29.2 allows HTML mangling attacks.


How to mitigate CVE-2017-8811

Install update from vendor's website.

Sources