Unrated severityNVD Advisory· Published Jun 18, 2026· Updated Jun 18, 2026
Stored XSS in UBB.threads
CVE-2026-54219
Description
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 upon viewing.
Because vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version 7.7.5 but may also affect other versions.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
1- Range: <=7.7.5
Patches
Vulnerability mechanics
References
2- cert.pl/en/posts/2026/06/CVE-2026-54219mitrethird-party-advisory
- www.ubbcentral.commitreproduct
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