Quick answers
- Is CVE-2026-13413 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-13413 being exploited in the wild.
- How severe is CVE-2026-13413?
- Medium severity, with a CVSS score of 5.3, published 2 October 2026.
- Which products and versions are affected?
- CMP – Coming Soon & Maintenance before 4.1.20.
- Is there a fix for CVE-2026-13413?
- Yes: fixed in 4.1.20. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-13413 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-13413?
- Check whether you run CMP – Coming Soon & Maintenance at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- Fixed in: 4.1.20
Technical details
The plugin contains an access control bypass in its maintenance mode logic, where the request restriction mechanism can be circumvented by shaping requests to match login request patterns. An unauthenticated attacker can reach the site content and pages that should be hidden behind the maintenance/coming-soon page by exploiting this URL-matching confusion. The vulnerability is fixed in version 4.1.20.
Affected products
- CMP – Coming Soon & Maintenance before 4.1.20
Timeline
- 2026-09-29: disclosed
- 2026-09-29: patched