CVE-2025-53490

Improper Neutralization of Input During Web Page Generation (XSS or ‘Cross-site Scripting’) vulnerability in Wikimedia Foundation Mediawiki – CampaignEvents Extension allows Cross-Site Scripting (XSS).This issue affects Mediawiki – CampaignEvents Extension: from 1.43.X before 1.43.2.

Assigner : security@wikimedia.org

More information : https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CampaignEvents/+/1165949