CVE-2021-42045

MEDIUM

MediaWiki < 1.36.2 - Cross-Site Scripting via SecurePoll User-Agent Header

Title source: llm
STIX 2.1

Description

An issue was discovered in SecurePoll in the Growth extension in MediaWiki through 1.36.2. Simple polls allow users to create alerts by changing their User-Agent HTTP header and submitting a vote.

References (2)

Core 2
Core References
Vendor Advisory x_refsource_misc
https://phabricator.wikimedia.org/T289385

Scores

CVSS v3 5.4
EPSS 0.0021
EPSS Percentile 43.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Details

CWE
CWE-79
Status published
Products (1)
mediawiki/mediawiki < 1.36.2
Published Sep 29, 2022
Tracked Since Feb 18, 2026