CVE-2025-5699CWE-79

Developer Formatter <= 2015.0.2.1 - Authenticated (Administrator+) Stored Cross-Site Scripting via Custom CSS

Medium · published June 6, 2025

CVSS v3.1
5.5
EPSS
0%
Percentile
21.0
In the wild
Unconfirmed
What it is

The Developer Formatter plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Custom CSS in all versions up to, and including, 2015.0.2.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00295 · 21.0th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2025-06-06T06:42Z
EPSS history
Timeline
  • 06 JUN 06:42Z
    Developer Formatter <= 2015.0.2.1 - Authenticated (Administrator+) Stored Cross-Site Scripting via Custom CSS
    cvelistv5