CVE-2026-15038
CriticalCVSS 9.8Exploitation Probability (EPSS)
Low risk46th percentile - higher than 46% 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.
Other vulnerabilities in InfiniteWP Client
See all- CVE-2026-17576Medium
The InfiniteWP Client plugin for WordPress is vulnerable to SQL Injection via the get_comments action in versions up to, and including, 1.13.9 due to insufficient escaping on array-key names supplied in the JSON request body before use in a SQL statement. This makes it possible for authenticated attackers with administrator-level access and above to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
- CVE-2026-74011High
SQL Injection vulnerability in revmakx InfiniteWP Client allows Blind SQL Injection. This issue affects InfiniteWP Client: from n/a through 1.13.9.
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.