CVE-2021-47860
HIGH EPSS 13.2%
Published Jan 21, 20265mo ago · Modified Jun 17, 20261w ago
8.5 CVSS 4.0
Published Jan 21, 2026 5mo ago
Last Modified Jun 17, 2026 1w ago
Description
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction A
Scope X
Threat Intelligence
EPSS Exploit Probability
13.2% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available
Weaknesses 1
CWE-352 Cross-Site Request Forgery (CSRF) Authentication
Affected Products 1
| Vendor | Product | Version | Range |
|---|---|---|---|
| get-simple | getsimplecms | 0.1 | any |
References 6
- get-simple.info http://get-simple.info
- github.com https://github.com/GetSimpleCMS/GetSimpleCMS
- github.com https://github.com/boku7/gsCMS-CustomJS-Csrf2Xss2Rce
- exploit-db.com https://www.exploit-db.com/exploits/49712
- exploit-db.com https://www.exploit-db.com/exploits/49816
- vulncheck.com https://www.vulncheck.com/advisories/getsimple-cms-custom-js-csrf-to-xss-to-rce
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.