Exploitation Summary
EIP tracks 1 public exploit for CVE-2021-47870. PoCs published by boku.
AI-analyzed exploit summary This exploit chains a CSRF vulnerability with a stored XSS vulnerability in the My SMTP Contact plugin for GetSimple CMS to achieve remote code execution. The XSS payload bypasses htmlspecialchars() using hex-escaped characters to inject a script that collects a CSRF token and uploads a webshell.
Description
GetSimple CMS My SMTP Contact Plugin 1.1.2 suffers from a Stored Cross-Site Scripting (XSS) vulnerability. The plugin attempts to sanitize user input using htmlspecialchars(), but this can be bypassed by passing dangerous characters as escaped hex bytes. This allows attackers to inject arbitrary client-side code that executes in the administrator's browser when visiting a malicious page.
Exploits (1)
This exploit chains a CSRF vulnerability with a stored XSS vulnerability in the My SMTP Contact plugin for GetSimple CMS to achieve remote code execution. The XSS payload bypasses htmlspecialchars() using hex-escaped characters to inject a script that collects a CSRF token and uploads a webshell.
References (5)
Scores
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N