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CVE-2026-66600— WordPress Media LIbrary Assistant plugin <= 3.39 - Arbitrary File Upload vulnerability

Quick assessment

Affected
David Lingren Media LIbrary Assistant
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 Media Library Assistant是WordPress基金会的一个媒体库管理助手。 WordPress Media Library Assistant 3.39及之前版本存在任意文件上传漏洞，该漏洞源于对文件上传的验证不足，可能导致具有作者权限的攻击者上传任意文件。

CVSS 9.1 · Critical EPSS 0.50% · P41

Possible ATT&CK Techniques 1 AI

T1505.003 · Web Shell

Affected Version Matrix 1

VendorProduct Version RangeStatus
David Lingren Media LIbrary Assistant n/a≤ 3.39 affected
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I. Basic Information for CVE-2026-66600

Vulnerability Information
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Vulnerability Title
WordPress Media LIbrary Assistant plugin <= 3.39 - Arbitrary File Upload vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Author Arbitrary File Upload in Media LIbrary Assistant <= 3.39 versions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
危险类型文件的不加限制上传
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress Media Library Assistant 任意文件上传漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress Media Library Assistant是WordPress基金会的一个媒体库管理助手。 WordPress Media Library Assistant 3.39及之前版本存在任意文件上传漏洞，该漏洞源于对文件上传的验证不足，可能导致具有作者权限的攻击者上传任意文件。
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
David Lingren Media LIbrary Assistant n/a ~ 3.39 -

II. Public POCs for CVE-2026-66600

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III. Intelligence Information for CVE-2026-66600

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News Coverage for CVE-2026-66600 (1)

IV. Related Vulnerabilities

Same product: Media LIbrary Assistant
Same vendor: David Lingren
Same weakness: CWE-434

V. Comments for CVE-2026-66600

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