CVE-2026-54220: Ubb Systems Ubb.threads

High severity, CVSS 8.6. EPSS: 0.2% chance of exploitation in the next 30 days.

uBB.threads is vulnerable to a Cross-Site Request Forgery (CSRF) due to a lack of protective mechanisms. This allows an attacker to trick an authenticated user into executing unintended actions. Because vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version 7.7.5 but may also affect other versions.

Affected products

• Ubb Systems Ubb.threads: up to and including 7.7.5

Published 2026-06-18. Last modified 2026-06-18.