CVE-2026-54223 - Vulnerability Details - OpenCVE

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.

Attack Vector Network

Attack Complexity Low

Privileges Required High

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact Low

Subsequent System Integrity Impact Low

Subsequent System Availability Impact Low

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact total

No data.

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References

Link	Providers
https://cert.pl/en/posts/2026/06/CVE-2026-54219
https://www.ubbcentral.com/

History

Thu, 18 Jun 2026 16:45:00 +0000

Type	Values Removed	Values Added
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.
Title		Remote Code Execution via arbitrary file read and write in UBB.threads
Weaknesses		CWE-22
References		https://cert.pl/en/posts/2026/06/CVE-2026-54219 https://www.ubbcentral.com/
Metrics		cvssV4_0 `{'score': 8.6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L'}` ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

MITRE

Status: PUBLISHED

Assigner: CERT-PL

Published: 2026-06-18T12:56:22.497Z

Updated: 2026-06-18T13:11:19.103Z

Reserved: 2026-06-12T11:03:23.916Z

Link: CVE-2026-54223

Vulnrichment

Updated: 2026-06-18T13:11:14.534Z

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

No data.

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