CVE-2026-39693

Severity CVSS v4.0:

Pending analysis

Type:

CWE-79 Cross-Site Scripting (XSS)

Publication date:

08/04/2026

Last modified:

24/04/2026

Description

Improper Neutralization of Input During Web Page Generation (&#39;Cross-site Scripting&#39;) vulnerability in fesomia FSM Custom Featured Image Caption fsm-custom-featured-image-caption allows DOM-Based XSS.This issue affects FSM Custom Featured Image Caption: from n/a through

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L CVSS v3.1 Severity and Metrics:

Base Score: 5.90 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): Required
Scope (S): Changed
Confidentiality (C): Low
Integrity (I): Low
Availability (A): Low

Base Score 3.x

5.90

Severity 3.x

MEDIUM

References to Advisories, Solutions, and Tools

https://patchstack.com/database/Wordpress/Plugin/fsm-custom-featured-image-caption/vulnerability/wordpress-fsm-custom-featured-image-caption-plugin-1-25-1-cross-site-scripting-xss-vulnerability?_s_id=cve