XSS in Ubb Systems Ubb.threads

CVE-2026-54219

UBB.threads is vulnerable to Stored XSS via user posts and user profile fields. The application fails to properly sanitize user input, allowing low privileged attackers to inject arbitrary JavaScript that executes in a victim's browser upo…

Vulnerability class: XSS (Cross-Site Scripting)

Affected products

Weakness classification (CWE)

References