Simple JWT Login – Allows you to use JWT on REST endpoints. vulnerabilities
Plugin slug simple-jwt-login · 6 known vulnerabilities · latest disclosed 2026-10-05 · WordPress.org page
1 vulnerability has no fixed version yet. If you use this plugin, consider disabling or replacing it until a fix is released.
4 of 6 rated high or critical (CVSS 7 or more).
Known vulnerabilities in Simple JWT Login – Allows you to use JWT on REST endpoints.
| Severity | Affected versions | Fixed in | CVE | Published | Details |
|---|---|---|---|---|---|
| Medium 4.3 | 4.0.0 | No fix yet | CVE-2026-39793 | 2026-10-05 | Advisory |
| High 7.3 | < 3.6.8 | 3.6.8 | CVE-2026-19714 | 2026-08-20 | Advisory |
| High 8.8 | <= 3.6.6 | 3.6.7 | CVE-2026-14262 | 2026-07-10 | Advisory |
| Medium 6.4 | <= 3.6.4 | 3.6.5 | CVE-2025-58648 | 2025-09-22 | Advisory |
| High 8.8 | < 3.2.1 | 3.2.1 | CVE-2021-24804 | 2021-10-18 | Advisory |
| High 7.5 | < 3.3.0 | 3.3.0 | CVE-2021-24998 | 2021-10-13 | Advisory |
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Questions
Is the Simple JWT Login – Allows you to use JWT on REST endpoints. plugin safe to use?
1 known issue(s) have no fix yet, so check the table above before using it.
How do I check which version of Simple JWT Login – Allows you to use JWT on REST endpoints. 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.