Known vulnerabilities in Software License Manager

Create and manage license keys for your software applications easily

4Reported vulnerabilities

8.8Highest CVSS score

4.5.8Latest version

900+Active installs

What to do now

Update Software License Manager to 4.5.1 or later. 4 of these have a fixed version available. Updating resolves them.

Plugin last updated: August 17, 2026 / Tested up to WordPress: 7.1 / 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-2021-24711	High 8.8	0.7%	Before 4.5.1	`4.5.1`	October 11, 2021
CVE-2021-20782	High 8.8	0.9%	Before 4.4.6	`4.4.6`	July 8, 2021
CVE-2021-24560	Medium 6.1	0.7%	Before 4.4.8	`4.4.8`	September 13, 2021
WF-8a95633f-b5e1-4a92-b566-90fb05a289ce	Medium 5.5	—	4.4.9 and earlier	`4.5.0`	August 31, 2021

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