CVE-2025-53490

5.6 mediumEPSS 0.2%

Medium (5.6) in jly campaignevents. EPSS 0.2% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

5.6 medium

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

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 16% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2025-07-03
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

jly:campaignevents

References

https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CampaignEvents/+/1165949
https://phabricator.wikimedia.org/T395622

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