WP fail2ban – Advanced Security vulnerabilities
Plugin slug wp-fail2ban · 3 known vulnerabilities · latest disclosed 2026-04-30 · WordPress.org page
Every listed vulnerability has a fix. Version 5.4.0 or later is not affected by any of them. If your site runs an older version, update it.
1 of 3 rated high or critical (CVSS 7 or more).
Known vulnerabilities in WP fail2ban – Advanced Security
| Severity | Affected versions | Fixed in | CVE | Published | Details |
|---|---|---|---|---|---|
| Medium 6.1 | <= 5.3.4 | 5.4.0 | CVE-2024-13362 | 2026-04-30 | Advisory |
| Medium 6.3 | < 4.4.0.2 | 4.4.0.2 | CVE-2022-4974 | 2022-03-04 | Advisory |
| High 8.8 | < 4.0.5 | 4.0.5 | none | 2019-02-25 | Advisory |
Check if a site is affected
Enter a site address to see which version of WP fail2ban – Advanced Security and other plugins it runs, and whether they match a known vulnerability.
Questions
Is the WP fail2ban – Advanced Security plugin safe to use?
All 3 known issues are fixed in current versions (5.4.0 or later). Keeping it updated is what matters.
How do I check which version of WP fail2ban – Advanced Security my site runs?
In WordPress go to Plugins > Installed Plugins. From the outside, the free PluginPeek scan below reads the version from the site's public files.
How do I fix a vulnerable plugin?
Make a full backup, then update it from Dashboard > Updates and check the site afterwards. If you would rather not, we can do it for a fixed $99, paid after you have checked the site.