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CVE-2026-39468— WordPress Meta Box – WordPress Custom Fields Framework plugin <= 5.11.1 - Arbitrary File Deletion vulnerability

Quick assessment

Affected
eLightUp Meta Box – WordPress Custom Fields Framework
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.

Meta Box是越南Meta Box公司的一个WordPress自定义字段与内容建模插件。 Meta Box 5.11.1及之前版本存在路径遍历漏洞，该漏洞源于路径遍历问题，可能导致贡献者级别的用户任意删除文件。

CVSS 6.8 · Medium EPSS 1.35% · P71

Public Exploits 1

Nuclei · 1 CVE-2026-39468.yaml [template]

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 1

VendorProduct Version RangeStatus
eLightUp Meta Box – WordPress Custom Fields Framework n/a≤ 5.11.1 affected
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I. Basic Information for CVE-2026-39468

Vulnerability Information
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Vulnerability Title
WordPress Meta Box – WordPress Custom Fields Framework plugin <= 5.11.1 - Arbitrary File Deletion vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Contributor Arbitrary File Deletion in Meta Box – WordPress Custom Fields Framework <= 5.11.1 versions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
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
Vulnerability Title
Meta Box 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Meta Box是越南Meta Box公司的一个WordPress自定义字段与内容建模插件。 Meta Box 5.11.1及之前版本存在路径遍历漏洞，该漏洞源于路径遍历问题，可能导致贡献者级别的用户任意删除文件。
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
eLightUp Meta Box – WordPress Custom Fields Framework n/a ~ 5.11.1 -

II. Public POCs for CVE-2026-39468

# POC Description Source Link Shenlong Link
1 The Meta Box plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the ajax_delete_file function. This makes it possible for authenticated attackers with Contributor-level access and above to delete arbitrary files on the server. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-39468.yaml POC Details
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III. Intelligence Information for CVE-2026-39468

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Other References for CVE-2026-39468 (1)

IV. Related Vulnerabilities

Same product: Meta Box – WordPress Custom Fields Framework
Same vendor: eLightUp
Same weakness: CWE-22

V. Comments for CVE-2026-39468

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