CVE-2026-54223: CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in UBB Systems UBB.threads
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.
AI Analysis
Technical Summary
CVE-2026-54223 describes a path traversal vulnerability in UBB Systems' UBB.threads product. The flaw allows an attacker who already has privileges to edit templates to manipulate file paths, enabling reading and writing of any file accessible by the application on the server. This capability can result in remote code execution. The vulnerability is confirmed in version 7.7.5, with potential impact on other versions. Attempts to contact the vendor for remediation have been unsuccessful, and no official fix or mitigation has been published.
Potential Impact
An attacker with template editing privileges can exploit this vulnerability to access and modify arbitrary files on the server, potentially leading to remote code execution. This compromises the confidentiality, integrity, and availability of the affected system and data.
Mitigation Recommendations
No official patch or remediation is currently available. Since the vendor has not responded and no fix is published, users should restrict template editing privileges to trusted administrators only and monitor for suspicious activity. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance if it becomes available.
CVE-2026-54223: CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in UBB Systems UBB.threads
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.
CVSS v4.0
Score 8.6high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-54223 describes a path traversal vulnerability in UBB Systems' UBB.threads product. The flaw allows an attacker who already has privileges to edit templates to manipulate file paths, enabling reading and writing of any file accessible by the application on the server. This capability can result in remote code execution. The vulnerability is confirmed in version 7.7.5, with potential impact on other versions. Attempts to contact the vendor for remediation have been unsuccessful, and no official fix or mitigation has been published.
Potential Impact
An attacker with template editing privileges can exploit this vulnerability to access and modify arbitrary files on the server, potentially leading to remote code execution. This compromises the confidentiality, integrity, and availability of the affected system and data.
Mitigation Recommendations
No official patch or remediation is currently available. Since the vendor has not responded and no fix is published, users should restrict template editing privileges to trusted administrators only and monitor for suspicious activity. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance if it becomes available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- CERT-PL
- Date Reserved
- 2026-06-12T11:03:23.916Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a33ed16f198dc38c1d64bb6
Added to database: 6/18/2026, 1:05:26 PM
Last enriched: 6/18/2026, 1:20:06 PM
Last updated: 6/18/2026, 5:39:44 PM
Views: 9
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