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_i

high Affects hide-my-wp (WordPress plugin). Feed 2026.10.29.3, updated 2026-10-29; published 2021-11-24; advisory modified 2026-06-17.

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_i

Package: hide-my-wp (WordPress plugin) WordPress
Affected versions: <=6.2.3
Fixed in: no fix recorded
Severity: high CVSS 8.6
Exploitation: not on CISA KEV · EPSS 2% (79.2th percentile)
Published: 2021-11-24
Source: nvd

References

CWE-89

NVD record hide-my-wp (WordPress plugin) advisories

Am I affected?

Find out in one command. phpwarden checks your WordPress install against this advisory and 20,000+ others, ranked by real-world exploitation (CISA KEV + EPSS). Free, offline, open data.

# PHP projects (recommended)
composer require --dev phpwarden/phpwarden
# then
vendor/bin/phpwarden wordpress /var/www/html

# or, without Composer
pipx install phpwarden   &&   phpwarden wordpress /var/www/html

Or keep it checked automatically with the GitHub Action or a nightly cron; see WordPress docs.

Install docs How findings are ranked

Related advisories

CVE-2022-4681 critical The Hide My WP WordPress plugin before 6.2.9 does not properly sanitize and escape a param same package: hide-my-wp (WordPress plugin)
CVE-2021-36917 medium WordPress Hide My WP plugin (versions <= 6.2.3) can be deactivated by any unauthenticated same package: hide-my-wp (WordPress plugin)
CVE-2025-2056 high The WP Ghost (Hide My WP Ghost) – Security & Firewall plugin for WordPress is vulnerable t same package: hide-my-wp (WordPress plugin)
CVE-2024-13794 medium The WP Ghost (Hide My WP Ghost) – Security & Firewall plugin for WordPress is vulnerable t same package: hide-my-wp (WordPress plugin)
CVE-2024-10825 medium The Hide My WP Ghost – Security & Firewall plugin for WordPress is vulnerable to Reflected same package: hide-my-wp (WordPress plugin)
CVE-2022-4537 medium The Hide My WP Ghost – Security Plugin plugin for WordPress is vulnerable to IP Address Sp same package: hide-my-wp (WordPress plugin)