CVE-2026-13414
MediumCVSS 4.8Exploitation Probability (EPSS)
Low risk4th percentile - higher than 4% of all known CVEs
Summary
The CMP WordPress plugin before version 4.1.18 does not perform authorization checks on one of its AJAX actions and relies on a nonce that is skipped for certain (and exposed to anonymous visitors on others), allowing unauthenticated attackers to disable the site's maintenance/coming-soon mode under a non-default countdown configuration.
Risk Assessment
An unauthenticated attacker can disable the maintenance or coming-soon mode, potentially exposing unfinished or sensitive content to the public, leading to integrity and confidentiality breaches.
Recommendation
It is recommended to update the CMP plugin to version 4.1.18 or later and review the maintenance mode configuration to ensure it is secure.
Other vulnerabilities in CMP WordPress plugin
See all- CVE-2026-13416Low
The CMP WordPress plugin before version 4.1.18 does not sanitise and escape a settings value before outputting it on the coming-soon page, allowing users with the Editor role (when the administrator has granted the Editor role access to the CMP plugin's admin-bar controls) to inject arbitrary web scripts that execute when a visitor views the page.
- CVE-2026-13415High
The CMP WordPress plugin before version 4.1.18 does not enforce an option-name allow-list when importing settings via one of its AJAX actions, allowing users with the Editor role (when the administrator has granted the Editor role access to the CMP plugin's admin-bar controls) to update arbitrary WordPress options, including options that lead to privilege escalation to Administrator.
Original NVD description (English source)
The CMP WordPress plugin before 4.1.18 does not perform authorization checks on one of its AJAX actions and relies on a nonce that is skipped for certain (and exposed to anonymous visitors on others), allowing unauthenticated attackers to disable the site's maintenance/coming-soon mode under a non-default countdown configuration.