VULNERABILITY INTELLIGENCE

CVE-2020-10960

CVSS score5.3 MEDIUM

EPSS probability1.15%

CISA KEVNot currently listed

Published2020-04-03

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Description

In MediaWiki before 1.34.1, users can add various Cascading Style Sheets (CSS) classes (which can affect what content is shown or hidden in the user interface) to arbitrary DOM nodes via HTML content within a MediaWiki page. This occurs because jquery.makeCollapsible allows applying an event handler to any Cascading Style Sheets (CSS) selector. There is no known way to exploit this for cross-site scripting (XSS).

Weakness classification

CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

Primary references

cve@mitre.org — Mailing List, Patch, Vendor Advisory
cve@mitre.org — Exploit, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Vendor Advisory