TI-2026-47513 Aliases CVE-2026-67189 GHSA-gfrq-49j2-vmv3

pfSense Plus/CE Stored XSS via Traffic Graphs PTR Record

LOW 26CWE-79Published 2026-08-19 · Updated 2026-10-01

Key facts

Attack vector: Network
Privileges required: None
User interaction: Passive
Attack complexity: Low
Attack requirements: None
Impact type: Cross-site scripting
Confidentiality · integrity · availability: None · None · None
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.01167 67th percentileScored 2026-11-07

Fix Fixed pfSense Plus (Netgate): 26.07

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Netgate	pfSense Plus	before 26.07	26.07	Patch available	CNA
Netgate	pfSense CE	up to 2.8.1	—	No fix listed	CNA

pfSense Plus VendorNetgate Affected before 26.07 Fixed in 26.07 Patch available CNA
pfSense CE VendorNetgate Affected up to 2.8.1 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:pfsense:pfsense::::::::	—	—	pfSense

cpe:2.3:a:pfsense:pfsense:*:*:*:*:*:*:*:* Versions — — ·pfSense

Remediation

Fix · CNA pfSense Plus (Netgate) Fixed in 26.07

Timeline

2026-10-02 Threatist record created from CVE-2026-67189
2026-10-03 Alias added: GHSA-gfrq-49j2-vmv3

References

Advisory 1

Vendor Advisory

Other 2

TI-2022-13704 pfSense pfBlockerNG through 2.1.4_26 allows remote attackers to execute arbitrary OS… CVSS 3.1CRITICAL 9.8
TI-2023-12003 A command injection vulnerability in the function restore_rrddata() of Netgate pfSense… CVSS 3.1HIGH 8.8
TI-2024-31010 A cross-site scripting (XSS) vulnerability in pfsense v2.5.2 allows attackers to execute… CVSS 3.1CRITICAL 9.3
TI-2023-11923 Improper restriction of excessive authentication attempts in the SSHGuard component of… CVSS 3.1CRITICAL 9.8
TI-2023-26046 An issue in Netgate pfSense Plus v.23.05.1 and before and pfSense CE v.2.7.0 allows a… CVSS 3.1HIGH 8.8
TI-2023-22567 An issue in Netgate pfSense v.2.7.0 allows a remote attacker to execute arbitrary code… CVSS 3.1HIGH 8.8

See all 92 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences