Unrated severityNVD Advisory· Published Nov 24, 2021· Updated Apr 28, 2026
WordPress Hide My WP premium plugin <= 6.2.3 - Unauthenticated SQL injection (SQLi) vulnerability
CVE-2021-36916
Description
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.
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Affected products
2- wpWave/Hide My WP (WordPress plugin)v5Range: <= 6.2.3
Patches
Vulnerability mechanics
References
3- codecanyon.net/item/hide-my-wp-amazing-security-plugin-for-wordpress/4177158mitrex_refsource_CONFIRM
- patchstack.com/database/vulnerability/hide-my-wp/wordpress-hide-my-wp-premium-plugin-6-2-3-sql-injection-sqli-vulnerabilitymitrex_refsource_MISC
- patchstack.com/hide-my-wp-vulnerabilities-fixed/mitrex_refsource_MISC
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