CVE-2026-13413 CMP - Coming Soon & Maintenance < 4.1.20 - Unauthenticated Maintenance Mode Bypass via Login URL Match
Unauthenticated attackers can bypass maintenance mode restrictions to access hidden site content by manipulating login request patterns.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-13413?
CVE-2026-13413 is a medium-severity authentication bypass vulnerability in Unknown CMP – Coming Soon & Maintenance, published on 2 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-284
Which versions are affected by CVE-2026-13413?
How do I fix CVE-2026-13413?
No fix has been published for CVE-2026-13413 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-13413 being exploited?
There is no known exploitation of CVE-2026-13413 in the wild and no public exploit code.
Sources
Also known as GHSA-f976-7gvc-44rh.