CVE-2020-26120

MEDIUM

MediaWiki < 1.34.4 - Cross-Site Scripting via MobileFrontend Section Line Regex Replacement

Title source: llm
STIX 2.1

Description

XSS exists in the MobileFrontend extension for MediaWiki before 1.34.4 because section.line is mishandled during regex section line replacement from PageGateway. Using crafted HTML, an attacker can elicit an XSS attack via jQuery's parseHTML method, which can cause image callbacks to fire even without the element being appended to the DOM.

References (3)

Core 3
Core References
Exploit, Issue Tracking, Patch, Vendor Advisory x_refsource_misc
https://phabricator.wikimedia.org/T262213

Scores

CVSS v3 6.1
EPSS 0.0028
EPSS Percentile 51.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Details

CWE
CWE-79
Status published
Products (2)
fedoraproject/fedora 33
mediawiki/mediawiki < 1.34.4
Published Sep 27, 2020
Tracked Since Feb 18, 2026