CVE-2026-63361: Limesurvey

High severity, CVSS 8.5. EPSS: 0.5% chance of exploitation in the next 30 days.

LimeSurvey Community Edition 7.0.5 contains an authenticated reflected cross-site scripting vulnerability in the HTML editor popup endpoint. The text and name query parameters are passed through a blacklist sanitizer and then rendered without context-appropriate output encoding.

Affected products

• Limesurvey Limesurvey: version 7.0.5 only

Published 2026-08-14. Last modified 2026-08-28.