CVE-2023-31576: s9y Serendipity

High severity, CVSS 8.8. EPSS: 1.1% chance of exploitation in the next 30 days.

An arbitrary file upload vulnerability in Serendipity 2.4-beta1 allows attackers to execute arbitrary code via a crafted HTML or Javascript file.

Affected products

• s9y Serendipity: version 2.4.0 only

Published 2023-05-16. Last modified 2026-06-17.