CyberRota Analysis
This is a critical severity vulnerability with a CVSS score of 9.8. Public exploit code or proof-of-concept references have been detected in its references.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
Detected Signals
arbitrary code execution code execution
GitHub PoC Links
Note: these links are listed for security research and verification purposes only.
CVE
CVE-2020-21523
Severity
CRITICAL
CVSS
9.8
EPSS
2.59%
Original NVD Description
A Server-Side Freemarker template injection vulnerability in halo CMS v1.1.3 In the Edit Theme File function. The ftl file can be edited. This is the Freemarker template file. This file can cause arbitrary code execution when it is rendered in the background. exp: <#assign test="freemarker.template.utility.Execute"?new()> ${test("touch /tmp/freemarkerPwned")}
Related CVEs
Other vulnerabilities affecting the same vendor(s)