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CVE-2026-1251— SupportCandy – Helpdesk & Customer Support Ticket System <= 3.4.4 - Authenticated (Subscriber+) Insecure Direct Object Reference

Quick assessment

Affected
psmplugins SupportCandy – Helpdesk & Customer Support Ticket 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和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin SupportCandy 3.4.4及之前版本存在安全漏洞，该漏洞源于add_reply函数缺少对用户控制键的验证，可能导致不安全的直接对象引用攻击。

CVSS 5.4 · Medium EPSS 0.31% · P22

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2026-1251

Vulnerability Information
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Vulnerability Title
SupportCandy – Helpdesk & Customer Support Ticket System <= 3.4.4 - Authenticated (Subscriber+) Insecure Direct Object Reference
Source: CVE Program / CVE List V5
Vulnerability Description
The SupportCandy – Helpdesk & Customer Support Ticket System plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 3.4.4 via the 'add_reply' function due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with subscriber-level access and above, to steal file attachments uploaded by other users by specifying arbitrary attachment IDs in the 'description_attachments' parameter, re-associating those files to their own tickets and removing access from the original owners.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress plugin SupportCandy 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin SupportCandy 3.4.4及之前版本存在安全漏洞，该漏洞源于add_reply函数缺少对用户控制键的验证，可能导致不安全的直接对象引用攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
psmplugins SupportCandy – Helpdesk & Customer Support Ticket System * ~ 3.4.4 -

II. Public POCs for CVE-2026-1251

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III. Intelligence Information for CVE-2026-1251

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Patches & Fixes for CVE-2026-1251 (2)

IV. Related Vulnerabilities

Same product: SupportCandy – Helpdesk & Customer Support Ticket System
Same vendor: psmplugins
Same weakness: CWE-639

V. Comments for CVE-2026-1251

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