CVE-2023-53927: Phpjabbers Simple CMS

Medium severity, CVSS 5.4. EPSS: 0.3% chance of exploitation in the next 30 days.

PHPJabbers Simple CMS 5.0 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject malicious scripts through section name parameters. Attackers can create sections with embedded JavaScript payloads that will execute when administrators view the sections, potentially enabling client-side code execution.

Affected products

• Phpjabbers Simple CMS: version 5.0 only

Published 2025-12-17. Last modified 2026-06-17.