Vulnerability Description
UBB.threads is vulnerable to Reflected XSS. The application improperly handles user input in certain requests, enabling attackers to execute arbitrary JavaScript in the context of a victim's browser by tricking them into clicking a crafted link. Because vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version 7.7.5 but may also affect other versions.
Related Weaknesses (CWE)
References
FAQ
What is CVE-2026-54221?
CVE-2026-54221 is a documented vulnerability. UBB.threads is vulnerable to Reflected XSS. The application improperly handles user input in certain requests, enabling attackers to execute arbitrary JavaScript in the context of a victim's browser b...
How severe is CVE-2026-54221?
CVSS scoring is not yet available for CVE-2026-54221. Check NVD for updates.
Is there a patch for CVE-2026-54221?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.