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Fsm Custom Featured Image Caption Vulnerabilities

1 known security issue reported for the Fsm Custom Featured Image Caption WordPress plugin. Most recent disclosed Feb 25, 2026.

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FSM Custom Featured Image Caption <= 1.25.1 - Authenticated (Author+) Stored Cross-Site Scripting

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The FSM Custom Featured Image Caption plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 1.25.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with author-level access and above, to inject arbitrary web scr...

CVSS:: 6.4
Affected:: up to 1.25.1
Fix:: No patched version reported
Disclosed:: Feb 25, 2026

CVE-2026-39693 on NVD →

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