CVE-2026-66591— WordPress Media LIbrary Assistant plugin <= 3.39 - Cross Site Scripting (XSS) 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.
David Lingren Media Library Assistant 中存在不当输入中性化漏洞（跨站脚本，XSS）导致存储型 XSS。 该漏洞影响 Media Library Assistant：从 n/a 到 3.39 版本。
Affected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| David Lingren | Media LIbrary Assistant | n/a≤ 3.39 |
affected |
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I. Basic Information for CVE-2026-66591
Vulnerability Information
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Vulnerability Title
WordPress Media LIbrary Assistant plugin <= 3.39 - Cross Site Scripting (XSS) vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in David Lingren Media LIbrary Assistant allows Stored XSS.
This issue affects Media LIbrary Assistant: from n/a through 3.39.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| David Lingren | Media LIbrary Assistant | n/a ~ 3.39 | - |
|
II. Public POCs for CVE-2026-66591
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-66591 (1)
IV. Related Vulnerabilities
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Same weakness: CWE-79
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V. Comments for CVE-2026-66591
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