CVE-2026-27369: Boldthemes Celeste

High severity, CVSS 8.1. EPSS: 0.5% chance of exploitation in the next 30 days.

Deserialization of Untrusted Data vulnerability in BoldThemes Celeste celeste allows Object Injection.This issue affects Celeste: from n/a through <= 1.3.6.

Affected products

• Boldthemes Celeste: up to and including 1.3.6

Published 2026-03-05. Last modified 2026-06-17.