CyberRota Analysis
AI-GeneratedAuthenticated users with firewall rule management privileges in OPNsense versions prior to 26.1.9 are susceptible to a stored cross-site scripting vulnerability that allows the injection of arbitrary HTML or JavaScript into the firewall rule description. This flaw can lead to the execution of malicious scripts in the browsers of any authenticated users viewing the Firewall Rules page, potentially resulting in session hijacking or credential theft. Organizations using OPNsense should prioritize patching to mitigate this risk.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
OPNsense before 26.1.9 contains a stored cross-site scripting vulnerability that allows authenticated attackers with firewall rule management privileges to inject arbitrary HTML or JavaScript by embedding payloads in the firewall rule description field via the filter API endpoint. The unsanitized description value is persisted and later rendered through the default cell formatter in opnsense_bootgrid.js, which assigns raw cell content to innerHTML, causing injected scripts to execute in the browser of any authenticated user who views the Firewall Rules page, enabling session hijacking or credential theft.