CVE-2025-57520

A Cross Site Scripting (XSS) vulnerability exists in Decap CMS thru 3.8.3

Medium · published September 10, 2025

CVSS v3.1
6.1
EPSS
0%
Percentile
25.5
In the wild
Unconfirmed
What it is

A Cross Site Scripting (XSS) vulnerability exists in Decap CMS thru 3.8.3. Input fields such as body, tags, title, and description are not properly sanitized before being rendered in the content preview pane. This enables an attacker to inject arbitrary JavaScript which executes whenever a user views the preview panel. The vulnerability affects multiple input vectors and does not require user interaction beyond viewing the affected content.

The record
Technical detail
CVSS v3.1
6.1 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00334 · 25.5th percentile
Published
2025-09-10T00:00Z
EPSS history
Timeline
  • 10 SEP 00:00Z
    A Cross Site Scripting (XSS) vulnerability exists in Decap CMS thru 3.8.3
    cvelistv5