CVE-2026-39693CWE-79

WordPress FSM Custom Featured Image Caption plugin <= 1.25.1 - Cross Site Scripting (XSS) vulnerability

Medium · published April 8, 2026

CVSS v3.1
5.9
EPSS
0%
Percentile
14.3
In the wild
Unconfirmed
What it is

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') 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 <= 1.25.1.

The record
Technical detail
CVSS v3.1
5.9 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00240 · 14.3th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-04-08T08:30Z
EPSS history
Timeline
  • 08 APR 08:30Z
    WordPress FSM Custom Featured Image Caption plugin <= 1.25.1 - Cross Site Scripting (XSS) vulnerability
    cvelistv5