Known vulnerabilities in FSM Custom Featured Image Caption

Allows adding custom captions to the featured images of the posts.

1Reported vulnerabilities

6.4Highest CVSS score

1.26Latest version

5,000+Active installs

What to do now

Update FSM Custom Featured Image Caption to 1.26 or later. Some of these have no published fix. Update to the latest version and check the vendor advisory.

Plugin last updated: April 27, 2026 / Tested up to WordPress: 6.8.8 / 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-2026-39693	Medium 6.4	0.1%	1.25.1 and earlier	—	February 25, 2026

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