CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NpfSense Plus before 26.07 and pfSense CE through 2.8.1 contain a stored cross-site scripting vulnerability in the Traffic Graphs top-talkers feature, where PTR records returned by reverse DNS lookups are incorporated without sanitization into AJAX responses and rendered as HTML through a DOM sink in the administrator interface. An attacker who controls a PTR record and generates sufficient traffic to appear as a top talker can execute arbitrary JavaScript in an administrator's browser, gaining access to the authenticated session context and same-origin access to the firewall management interface, enabling account creation and arbitrary OS command execution.
Multiple vulnerabilities have been discovered in Netgate products, including pfSense. These vulnerabilities allow for data integrity compromise, data confidentiality breaches, and remote code execution. Several CVEs have…