What’s Vulnerable › Vulnerabilities

CVE-2023-42033: Visualware MyConnection Server doPostUploadfiles Directory Traversal Remote Code Execution Vulnerability

• Severity: high (CVSS 7.2 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-05-03 · updated 2026-06-17
• Weakness: CWE-22

Description

Visualware MyConnection Server doPostUploadfiles Directory Traversal Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Visualware MyConnection Server. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the doPostUploadfiles method. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-21612.

Affected products

• Visualware MyConnection Server: 11.3c

References

• https://myconnectionserver.visualware.com/support/security-advisories
• https://www.zerodayinitiative.com/advisories/ZDI-23-1396/
• https://myconnectionserver.visualware.com/support/security-advisories
• https://www.zerodayinitiative.com/advisories/ZDI-23-1396/

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