Description

An issue was discovered in the Growth extension in MediaWiki through 1.36.2. Any admin can add arbitrary JavaScript code to the Newcomer home page footer, which can be executed by viewers with zero edits.

Remediation

References

CVE-2021-42048

Related Vulnerabilities

WordPress Plugin Post Grid PHP Object Injection (2.0.11)

Ruby on Rails Uncontrolled Resource Consumption Vulnerability (CVE-2020-8185)

WordPress Plugin 404 to 301-Redirect, Log and Notify 404 Errors Security Bypass (3.0.1)

TYPO3 URL Redirection to Untrusted Site ('Open Redirect') Vulnerability (CVE-2010-3661)

Moodle Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2021-32244)

Severity

Medium

Classification

CVE-2021-42048 CWE-707 CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Tags

Missing Update Known Vulnerabilities