CVE-2021-36916

The SQL injection vulnerability in the Hide My WP WordPress plugin (versions <= 6.2.3) is possible because of how the IP address is retrieved and used inside a SQL query. The function "hmwp_get_user_ip" tries to retrieve the IP address from multiple headers, including IP address headers that the user can spoof, such as "X-Forwarded-For." As a result, the malicious payload supplied in one of these IP address headers will be directly inserted into the SQL query, making SQL injection possible.

• CWE-89
• CWE-89

• https://codecanyon.net/item/hide-my-wp-amazing-security-plugin-for-wordpress/4177158Product
• https://patchstack.com/database/vulnerability/hide-my-wp/wordpress-hide-my-wp-premium-plugin-6-2-3-sql-injection-sqli-vulnerabilityPatch, Third Party Advisory
• https://patchstack.com/hide-my-wp-vulnerabilities-fixed/Exploit, Third Party Advisory
• https://codecanyon.net/item/hide-my-wp-amazing-security-plugin-for-wordpress/4177158Product
• https://patchstack.com/database/vulnerability/hide-my-wp/wordpress-hide-my-wp-premium-plugin-6-2-3-sql-injection-sqli-vulnerabilityPatch, Third Party Advisory
• https://patchstack.com/hide-my-wp-vulnerabilities-fixed/Exploit, Third Party Advisory

Published

Nov 24, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2021-36910Authenticated (admin user role) Stored Cross-Site Scripting …4.8
• CVE-2021-36911Stored Cross-Site Scripting (XSS) vulnerability discovered i…5.4
• CVE-2021-36912Stored Cross-Site Scripting (XSS) vulnerability in Andrea Pe…5.4
• CVE-2021-36913Unauthenticated Options Change and Content Injection vulnera…7.5
• CVE-2021-36914Cross-Site Request Forgery (CSRF) vulnerability leading to R…6.1
• CVE-2021-36915Cross-Site Request Forgery (CSRF) vulnerability in Cozmoslab…4.3
• CVE-2021-36917WordPress Hide My WP plugin (versions <= 6.2.3) can be deact…7.5
• CVE-2021-36919Multiple Authenticated Reflected Cross-Site Scripting (XSS) …5.4
• CVE-2021-3692yii2 is vulnerable to Use of Predictable Algorithm in Random…5.3
• CVE-2021-36920Authenticated Reflected Cross-Site Scripting (XSS) vulnerabi…5.4
• CVE-2021-36921AIMANAGER before B115 on MONITORAPP Application Insight Web …8.8
• CVE-2021-36922RtsUpx.sys in Realtek RtsUpx USB Utility Driver for Camera/H…7.8