PT-2021-23481

CVE-2021-42042

Published

2021-10-06

Updated

2024-03-06

Description by

CVSS 3.1

4.8

Medium

MetricsAV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions MediaWiki versions through 1.36.2 GrowthExperiments extension in MediaWiki versions through 1.36.2

Description An issue was discovered in SpecialEditGrowthConfig in the GrowthExperiments extension. The growthexperiments-edit-config-error-invalid-title MediaWiki message was not being properly sanitized, allowing for the injection and execution of HTML and JavaScript.

Recommendations For MediaWiki versions through 1.36.2, update to a version that properly sanitizes the growthexperiments-edit-config-error-invalid-title MediaWiki message to prevent HTML and JavaScript injection. For the GrowthExperiments extension in MediaWiki versions through 1.36.2, ensure that the SpecialEditGrowthConfig properly sanitizes user input to prevent exploitation.

Exploitability

Fix

Impacts

Researchers

Urbanecm_Wmf

Vendors

Affected products

Weakness enumeration

CWE-79: Improper Neutralization of Input During Web Page Generation (\'Cross-site Scripting\')

Related identifiers

CVE-2021-42042

ALT-PU-2021-3561