CVE-2026-63360: Limesurvey

High severity, CVSS 7.4. EPSS: 0.5% chance of exploitation in the next 30 days.

LimeSurvey Community Edition 7.0.5+260623 contains an authenticated reflected Cross-Site Scripting vulnerability in the user activation confirmation endpoint. The action query parameter is copied into the response and inserted into a hidden input attribute without HTML attribute encoding. This issue affects LimeSurvey: 7.0.5.

Affected products

• Limesurvey Limesurvey: version 7.0.5 only

Published 2026-08-26. Last modified 2026-08-28.