Known vulnerabilities in Simple JWT Login – Allows you to use JWT on REST endpoints.

Enhance the WordPress REST API with JWT authentication for secure access by mobile apps, external sites, and third-party services.

5Reported vulnerabilities

8.8Highest CVSS score

3.6.8Latest version

4,000+Active installs

What to do now

Update Simple JWT Login – Allows you to use JWT on REST endpoints. to 3.6.8 or later. 5 of these have a fixed version available. Updating resolves them.

Plugin last updated: August 9, 2026 / Tested up to WordPress: 7.0.4 / View on wordpress.org

Reported vulnerabilities

Ordered by how urgently they need attention — whether a vulnerability is actually being exploited, and how likely exploitation is, rather than CVSS severity alone.

CVE	Severity	Exploit probability next 30 days	Affected versions	Fixed in	Published
CVE-2021-24804	High 8.8	0.6%	Before 3.2.1	`3.2.1`	November 17, 2021
CVE-2026-14262	High 8.8	0.7%	0 to 3.6.6 (inclusive)	`3.6.7`	July 11, 2026
CVE-2021-24998	High 7.5	1.2%	Before 3.3.0	`3.3.0`	December 27, 2021
CVE-2026-19714	High 7.3	0.3%	Before 3.6.8	`3.6.8`	August 20, 2026
CVE-2025-58648	Medium 6.4	0.2%	3.6.4 and earlier	`3.6.5`	September 22, 2025

Sources: vulnerability records from NVD, exploitation from CISA KEV, exploit probability from EPSS. Affected versions come from CPE ranges or from the reporting CNA.