CVE-2023-31285: Serenity Serene

Medium severity, CVSS 6.1. EPSS: 0.8% chance of exploitation in the next 30 days.

An XSS issue was discovered in Serenity Serene (and StartSharp) before 6.7.0. When users upload temporary files, some specific file endings are not allowed, but it is possible to upload .html or .htm files containing an XSS payload. The resulting link can be sent to an administrator user.

Affected products

• Serenity Serene: before 6.7.0 (fixed in 6.7.0)
• Serenity Startsharp: before 6.7.0 (fixed in 6.7.0)

Published 2023-04-27. Last modified 2026-06-17.