Under Construction Maintenance Mode Vulnerabilities

The Under Construction, Coming Soon & Maintenance Mode plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.1.1. This is due to missing or incorrect nonce validation on a function. This makes it possible for unauthenticated attackers to perform an unauthorized action...

CVSS:

4.3

Affected:

up to 2.1.1

Fixed in:

2.1.2

Disclosed:

Apr 7, 2026

CVE-2026-34896 on NVD →

The Under Construction, Coming Soon & Maintenance Mode Plugin for WordPress is vulnerable to Server Side Request Forgery in versions up to, and including, 1.1.1. This is due to missing or incorrect nonce validation on the 'ucmm_mc_api' function. This makes it possible for unauthenticated attackers to exploit via direc...

CVSS:

7.2

Affected:

up to 1.1.2

Fixed in:

1.1.2

Disclosed:

Feb 27, 2021

The Under Construction, Coming Soon & Maintenance Mode plugin for WordPress is vulnerable to Server Side Request Forgery (SSRF) in versions up to, and including,1.1.1. This is due to the 'apiKey' POST parameter being improperly sanitized. This makes it possible for unauthenticated attackers to execute arbitrary scripti...

CVSS:

6.1

Affected:

up to 1.1.1

Fixed in:

1.1.2

Disclosed:

Feb 27, 2021