VULNERABILITY INTELLIGENCE

CVE-2020-35478

CVSS score6.1 MEDIUM

EPSS probability1.37%

CISA KEVNot currently listed

Published2020-12-18

Last modified2026-06-17

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

Description

MediaWiki before 1.35.1 allows XSS via BlockLogFormatter.php. MediaWiki:blanknamespace potentially can be output as raw HTML with SCRIPT tags via LogFormatter::makePageLink(). This affects MediaWiki 1.33.0 and later.

Weakness classification

nvd@nist.gov: CWE-79

Primary references

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