CyberRota Analysis
AI-GeneratedAuthenticated users of Kanboard versions 1.2.52 and earlier are vulnerable to a server-side request forgery (SSRF) flaw that allows them to bypass security measures by using hexadecimal IP address notation in URLs. This vulnerability can lead to unauthorized access to internal network resources, including cloud instance metadata and localhost services. Organizations using affected versions should prioritize patching this vulnerability to mitigate the risk of internal resource exposure.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
Kanboard 1.2.52 and prior contains a server-side request forgery vulnerability that allows authenticated users to bypass SSRF protections by supplying hexadecimal IP address notation in user-controlled URLs. Attackers can submit hexadecimal-encoded internal IP addresses through the web link creation feature, causing cURL to resolve and connect to internal network resources such as cloud instance metadata services, localhost services, and RFC1918 addresses while the isPrivateURL() filter in app/Core/Http/Client.php incorrectly treats the input as safe due to FILTER_VALIDATE_IP rejecting non-dotted-decimal notation.