CVE-2021-47732CWE-79

CMSimple 5.2 Stored Cross-Site Scripting via Filebrowser External Input

Medium · published December 23, 2025

CVSS v4.0
5.1
EPSS
0%
Percentile
17.9
In the wild
Unconfirmed
What it is

CMSimple 5.2 contains a stored cross-site scripting vulnerability in the Filebrowser External input field that allows attackers to inject malicious JavaScript. Attackers can place unfiltered JavaScript code that executes when users click on Page or Files tabs, enabling persistent script injection.

The record
Technical detail
CVSS v4.0
5.1 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
EPSS
0.00268 · 17.9th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2025-12-23T19:34Z
EPSS history
Timeline
  • 23 DEC 19:34Z
    CMSimple 5.2 Stored Cross-Site Scripting via Filebrowser External Input
    cvelistv5