CVE-2026-67189: pfSense Plus/CE Stored XSS via Traffic Graphs PTR Record
Netgate · pfSense Plus
Fixed in 26.07 · Affected: Netgate pfSense Plus before 26.07 · Exploitation: possible (1 to 10%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 67% of scored CVEs
DescriptionCVE.org
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.
Affected products2
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Netgate · pfSense Plusbefore 26.07
- Netgate · pfSense CEup to and including 2.8.1
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Possible (1 to 10%). EPSS between 1% and 10%.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Weakness
- Cross-site Scripting
- Vendor
- Netgate
- Published
- August 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-67189 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.