Threat database

CVE-2026-105436 is a high-severity vulnerability in MainWP Child plugin versions prior to 6.2.2. It involves deserialization of untrusted data, which allows an attacker to perform object injection. This vulnerability can lead to complete compromise of confidentiality, integrity, and availability of the affected system. The issue affects all versions from initial releases up to 6.2.1 inclusive.

Unauthenticated Broken Access Control in MainWP Child <= 6.1.1 versions.

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.

The MainWP Child – Securely Connects to the MainWP Dashboard to Manage Multiple Sites plugin for WordPress is vulnerable to privilege escalation due to a missing authorization checks on the register_site function in all versions up to, and including, 5.2 when a site is left in an unconfigured state. This makes it possible for unauthenticated attackers to log in as an administrator on instances where MainWP Child is not yet connected to the MainWP Dashboard. IMPORTANT: this only affects sites who have MainWP Child installed and have not yet connected to the MainWP Dashboard, and do not have the unique security ID feature enabled. Sites already connected to the MainWP Dashboard plugin and do not have the unique security ID feature enabled, are NOT affected and not required to upgrade. Please note versions up to 5.3.3 contained a patch, though a bypass was discovered and not addressed until version 5.3.4.

The MainWP Child Reports plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.2. This is due to missing or incorrect nonce validation on the network_options_action() function. This makes it possible for unauthenticated attackers to update arbitrary options that can be leveraged for privilege escalation via a forged request granted they can trick a site administrator into performing an action such as clicking on a link. This is only exploitable on multisite instances.

Cross-Site Request Forgery (CSRF) vulnerability in MainWP MainWP Child Reports.This issue affects MainWP Child Reports: from n/a through 2.1.1.

The MainWP Dashboard – WordPress Manager for Multiple Websites Maintenance plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 4.6.0.1. This is due to missing or incorrect nonce validation on the 'posting_bulk' function. This makes it possible for unauthenticated attackers to delete arbitrary posts via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.