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CVE-2026-0829— Frontend File Manager Plugin <= 23.5 - Unauthenticated Arbitrary Email Sending

Quick assessment

Affected
Unknown Frontend File Manager Plugin
Exploitation
Public or AI PoC available; prioritize validation
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 Frontend File Manager Plugin 23.5及之前版本存在安全漏洞，该漏洞源于未经身份验证的用户可在无安全检查的情况下通过站点发送邮件，并可能猜测文件ID以未经授权访问和共享上传的文件，导致敏感

AI Predicted 5.3 Difficulty: Easy EPSS 0.68% · P51

Public Exploits 1

Nuclei · 1 CVE-2026-0829.yaml [template]

Possible ATT&CK Techniques 1 AI

T1534 · Internal Spearphishing
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I. Basic Information for CVE-2026-0829

Vulnerability Information
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Vulnerability Title
Frontend File Manager Plugin <= 23.5 - Unauthenticated Arbitrary Email Sending
Source: CVE Program / CVE List V5
Vulnerability Description
The Frontend File Manager Plugin WordPress plugin through 23.5 allows unauthenticated users to send emails through the site without any security checks. This lets attackers use the WordPress site as an open relay for spam or phishing emails to anyone. Attackers can also guess file IDs to access and share uploaded files without permission, exposing sensitive information.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress plugin Frontend File Manager Plugin 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 Frontend File Manager Plugin 23.5及之前版本存在安全漏洞，该漏洞源于未经身份验证的用户可在无安全检查的情况下通过站点发送邮件，并可能猜测文件ID以未经授权访问和共享上传的文件，导致敏感
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)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Unknown Frontend File Manager Plugin 0 ~ 23.5 -

II. Public POCs for CVE-2026-0829

# POC Description Source Link Shenlong Link
1 Frontend File Manager Plugin WordPress plugin through 23.5 contains an open relay and unauthorized file access vulnerability caused by lack of authentication and security checks, letting unauthenticated attackers send emails and access files, exploit requires no authentication. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-0829.yaml POC Details
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No public POC found.

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III. Intelligence Information for CVE-2026-0829

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Vendor Advisories for CVE-2026-0829 (1)

IV. Related Vulnerabilities

Same product: Frontend File Manager Plugin
Same vendor: Unknown

V. Comments for CVE-2026-0829

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