CVE-2021-44855

PoC —

CVSS 3.1

5.4 medium

EPSS

<1%p45

Published

Dec 26, 2022 (Dec 26, 2022)

Modified

Jun 17, 2026

Description

An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1. There is Blind Stored XSS via a URL to the Upload Image feature.

Vendors: mediawiki
Products: mediawiki
Weakness: CWE-79
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

NVD CVE.org GitHub PoCs EPSS (0.6%)

In the news0 stories

No ingested article mentions this CVE yet.