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CVE-2026-104739— JS Help Desk <= 5.0.1 - Authenticated (Administrator+) Path Traversal to Arbitrary File Deletion via 'support_custom_img' Parameter

Quick assessment

Affected
rabilal JS Help Desk – AI-Powered Support & Ticketing System
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress 插件"JS Help Desk – AI-Powered Support & Ticketing System"在 5.0.1 及更早的所有版本中，由于 函数中对文件路径的验证不足，存在任意文件删除漏洞。该漏洞允许拥有管理员及以上权限的已认证攻击者删除服务器上的任意文件；若攻击者删除了关键文件（例如 ），则极易导致远程代码执行。利用该漏洞需要执行两步操作：首先，管理员在 配置字段中保存一个经过构造的路径遍历值；随后，通过上传新的自定义支持图片触发删除操作，此时 函数会解析并删除由攻击者控制的路径

CVSS 4.9 · Medium

Affected Version Matrix 1

VendorProduct Version RangeStatus
rabilal JS Help Desk – AI-Powered Support & Ticketing System ≤ 5.0.1 affected
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I. Basic Information for CVE-2026-104739

Vulnerability Information
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Vulnerability Title
JS Help Desk <= 5.0.1 - Authenticated (Administrator+) Path Traversal to Arbitrary File Deletion via 'support_custom_img' Parameter
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
rabilal JS Help Desk – AI-Powered Support & Ticketing System 0 ~ 5.0.1 -

II. Public POCs for CVE-2026-104739

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III. Intelligence Information for CVE-2026-104739

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Other References for CVE-2026-104739 (5)

IV. Related Vulnerabilities

Same product: JS Help Desk – AI-Powered Support & Ticketing System
Same vendor: rabilal
Same weakness: CWE-22