What the vulnerability does
01Description
The MainWP Child Reports plugin for WordPress is vulnerable to Missing Authorization in all versions up to and including 2.2.6. This is due to a missing capability check in the heartbeat_received() function in the Live_Update class. This makes it possible for authenticated attackers, with Subscriber-level access and above, to obtain MainWP Child Reports activity log entries (including action summaries, user information, IP addresses, and contextual data) via the WordPress Heartbeat API by sending a crafted heartbeat request with the 'wp-mainwp-stream-heartbeat' data key.
Explanation of Vulnerability in Simple Terms
02Summary
MainWP Child Reports versions 2.2.6 and earlier lack proper authorization checks, allowing unauthenticated attackers to read sensitive report data. The vulnerability requires only network access and no user interaction. An attacker can retrieve confidential information without logging in or triggering any alerts.
What an attacker can do
03Attacker Capabilities
Read sensitive report data without authentication.
Potential impact on your site
04Site Impact
Confidential reports and site data exposed to anyone on the internet.
Conditions required to exploit
05Prerequisites
Network access only; no authentication or user interaction required.
Key dates
06Disclosure timeline
April 8, 2026
CVE published
April 13, 2026
Record updated
