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CVE-2025-53490: Multiple XSS in CampaignEvents

Description

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.

Classification

CVE ID: CVE-2025-53490

Problem Types

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

Affected Products

Vendor: Wikimedia Foundation

Product: Mediawiki - CampaignEvents Extension

References

https://nvd.nist.gov/vuln/detail/CVE-2025-53490
https://phabricator.wikimedia.org/T395622
https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CampaignEvents/+/1165949

Timeline