CVE-2026-67189— pfSense Plus/CE Stored XSS via Traffic Graphs PTR Record
Possible ATT&CK Techniques 2AI
T1059 · Command and Scripting Interpreter T1189 · Drive-by CompromiseAffected Version Matrix 2
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Netgate | pfSense CE | ≤ 2.8.1 | affected |
| Netgate | pfSense Plus | < 26.07 | affected |
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I. Basic Information for CVE-2026-67189
Vulnerability Information
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Vulnerability Title
pfSense Plus/CE Stored XSS via Traffic Graphs PTR Record
Source: CVE Program / CVE List V5
Vulnerability Description
pfSense 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Netgate | pfSense Plus | 0 ~ 26.07 | - | |
| Netgate | pfSense CE | 0 ~ 2.8.1 | - |
II. Public POCs for CVE-2026-67189
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-67189 (2)
Vendor Pages for CVE-2026-67189 (2)
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V. Comments for CVE-2026-67189
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