CVE-2026-15038
CriticalCVSS 9.8Exploitation Probability (EPSS)
Low risk9th percentile - higher than 9% of all known CVEs
Summary
The InfiniteWP Client WordPress plugin before version 1.13.6 improperly verifies the site-connection state and the authenticity of requests to its remote-management endpoint on WordPress Multisite installations. This allows unauthenticated attackers to bind their own key, hijack an administrator session, and take over the entire network, leading to remote code execution.
Risk Assessment
The risk is critical: an attacker can gain full control over the entire Multisite network, potentially leading to complete compromise of all sites and their data.
Recommendation
Immediately update the InfiniteWP Client plugin to version 1.13.6 or later, which includes a fix for this vulnerability.
Original NVD description (English source)
The InfiniteWP Client WordPress plugin before 1.13.6 does not properly verify the site-connection state and the authenticity of requests to its remote-management endpoint on WordPress Multisite installations, allowing unauthenticated attackers to bind their own key, hijack an administrator session, and take over the entire network, leading to remote code execution.