What the vulnerability does
01Description
The Moosend Landing Pages plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the moosend_landings_auth_get function in all versions up to, and including, 1.1.6. This makes it possible for authenticated attackers, with Subscriber-level access and above, to delete the 'moosend_landing_api_key' option value.
Explanation of Vulnerability in Simple Terms
02Summary
Moosend Landing Pages versions 1.1.6 and earlier lack proper authorization checks, allowing unauthenticated attackers to modify data through the network. The vulnerability requires no user interaction and can be exploited remotely. Site administrators should update to a version newer than 1.1.6 to prevent unauthorized changes to landing page content.
What an attacker can do
03Attacker Capabilities
Modify landing page data without authentication.
Potential impact on your site
04Site Impact
Attackers can alter landing pages and their content without logging in.
Conditions required to exploit
05Prerequisites
Network access only; no authentication or user interaction required.
Key dates
06Disclosure timeline
January 7, 2026
CVE published
April 8, 2026
Record updated