rabilal JS Help Desk Plugin up to 5.0.1 on WordPress File Path Validation setSupportCustomImage support_custom_img path traversal

Summaryinfo

A vulnerability was found in rabilal JS Help Desk Plugin up to 5.0.1 and classified as problematic. This affects the function setSupportCustomImage of the component File Path Validation. Executing a manipulation of the argument support_custom_img can lead to path traversal. The identification of this vulnerability is CVE-2026-104739. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in rabilal JS Help Desk Plugin up to 5.0.1. It has been declared as problematic. This vulnerability affects the function setSupportCustomImage of the component File Path Validation. The manipulation of the argument support_custom_img with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

The JS Help Desk – AI-Powered Support & Ticketing System plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the setSupportCustomImage function in all versions up to, and including, 5.0.1. This makes it possible for authenticated attackers, with administrator-level access and above, to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php). Exploitation requires a two-step sequence: an administrator first saves a traversal-crafted value in the support_custom_img configuration field, then triggers deletion by uploading a new support custom image, at which point setSupportCustomImage() resolves and deletes the attacker-controlled path.

The advisory is shared for download at wordfence.com. This vulnerability was named CVE-2026-104739 since 10/02/2026. The exploitation appears to be easy. The attack can be initiated remotely. Additional levels of successful authentication are needed for exploitation. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 10/30/2026). The MITRE ATT&CK project declares the attack technique as T1006.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• WordPress Plugin

Vendor

• rabilal

Name

• JS Help Desk Plugin

Version

• 5.0.0
• 5.0.1

CPE 2.3info

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CPE 2.2info

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Once again VulDB remains the best source for vulnerability data.

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