CVE-2022-37721: Pyrocms

Critical severity, CVSS 9.0. EPSS: 0.8% chance of exploitation in the next 30 days.

PyroCMS 3.9 is vulnerable to a stored Cross Site Scripting (XSS_ when a low privileged user such as an author, injects a crafted html and javascript payload in a blog post, leading to full admin account takeover or privilege escalation.

Affected products

• Pyrocms Pyrocms: version 3.9 only

Published 2022-11-25. Last modified 2026-07-09.