CVE-2021-47860CWE-352

GetSimple CMS Custom JS 0.1 - CSRF to XSS to RCE

High · published January 21, 2026

CVSS v4.0
8.5
EPSS
0%
Percentile
18.9
In the wild
Unconfirmed
What it is

GetSimple CMS Custom JS 0.1 plugin contains a cross-site request forgery vulnerability that allows unauthenticated attackers to inject arbitrary client-side code into administrator browsers. Attackers can craft a malicious website that triggers a cross-site scripting payload to execute remote code on the hosting server when an authenticated administrator visits the page.

The record
Technical detail
CVSS v4.0
8.5 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
EPSS
0.00276 · 18.9th percentile
Weakness
CWE-352 · Cross-Site Request Forgery (CSRF)
Published
2026-01-21T17:29Z
EPSS history
Timeline
  • 21 JAN 17:29Z
    GetSimple CMS Custom JS 0.1 - CSRF to XSS to RCE
    cvelistv5