What’s Vulnerable › Vulnerabilities
CVE-2026-54223: Remote Code Execution via arbitrary file read and write in UBB.threads
- Severity: high (CVSS 8.6 v4.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.6% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-06-18 · updated 2026-10-26
- Weakness: CWE-22
Description
UBB.threads is vulnerable to Path traversal, allowing attackers with privilege to edit templates to read and write any file on the application’s server that application has privileges to, what results in Remote Code Execution. 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: through 7.7.5
References
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