VULNERABILITY INTELLIGENCE

CVE-2021-30458

CVSS score6.1 MEDIUM

EPSS probability0.98%

CISA KEVNot currently listed

Published2021-04-09

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

An issue was discovered in Wikimedia Parsoid before 0.11.1 and 0.12.x before 0.12.2. An attacker can send crafted wikitext that Utils/WTUtils.php will transform by using a <meta> tag, bypassing sanitization steps, and potentially allowing for XSS.

Weakness classification

nvd@nist.gov: CWE-79

Primary references

cve@mitre.org — Issue Tracking, Vendor Advisory
cve@mitre.org — Third Party Advisory
cve@mitre.org — Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Issue Tracking, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory