CVE-2021-39186 MEDIUM

CVE-2021-39186: Improper Input Validation in GlobalNewFiles

Vendor Miraheze
Product GlobalNewFiles
Weakness CWE-20 · Input validation
Published September 1, 2021
Last update August 4, 2024
View on NVD All CVEs

CVSS base score

4.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality None
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

GlobalNewFiles is a MediaWiki extension maintained by Miraheze. Prior to commit number cee254e1b158cdb0ddbea716b1d3edc31fa4fb5d, the username column of the GlobalNewFiles special page is vulnerable to a stored XSS. Commit number cee254e1b158cdb0ddbea716b1d3edc31fa4fb5d contains a patch. As a workaround, one may disallow <,> (or other characters required to insert html/js) from being used in account names so an XSS is not possible.

Key dates

02Disclosure timeline

September 1, 2021 CVE published
August 4, 2024 Record updated