JSON API User vulnerabilities
Plugin slug json-api-user · 2 known vulnerabilities · latest disclosed 2026-07-02 · WordPress.org page
Every listed vulnerability has a fix. Version 4.1.2 or later is not affected by any of them. If your site runs an older version, update it.
1 of 2 rated high or critical (CVSS 7 or more).
Known vulnerabilities in JSON API User
| Severity | Affected versions | Fixed in | CVE | Published | Details |
|---|---|---|---|---|---|
| Medium 6.4 | <= 4.1.0 | 4.1.2 | CVE-2026-9626 | 2026-07-02 | Advisory |
| Critical 9.8 | <= 3.9.3 | 3.9.4 | CVE-2024-6624 | 2024-07-10 | Advisory |
Check if a site is affected
Enter a site address to see which version of JSON API User and other plugins it runs, and whether they match a known vulnerability.
Questions
Is the JSON API User plugin safe to use?
All 2 known issues are fixed in current versions (4.1.2 or later). Keeping it updated is what matters.
How do I check which version of JSON API User 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.