CVE-2021-44855

MEDIUM

MediaWiki < 1.35.5, 1.36.x < 1.36.3, 1.37.x < 1.37.1 - Stored Cross-Site Scripting via Upload Image URL

Title source: llm
STIX 2.1

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.

References (2)

Core 2
Core References
Exploit, Issue Tracking, Vendor Advisory
https://phabricator.wikimedia.org/T293589

Scores

CVSS v3 5.4
EPSS 0.0051
EPSS Percentile 66.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-79
Status published
Products (2)
mediawiki/mediawiki 1.37.0 (4 CPE variants)
mediawiki/mediawiki < 1.35.5
Published Dec 26, 2022
Tracked Since Feb 18, 2026