CVE-2026-38961CWE-79cross-site-scripting

CVE-2026-38961

Medium · published September 4, 2026

CVSS v3.1
5.4
EPSS
0%
Percentile
19.4
In the wild
Unconfirmed
What it is

Cross-Site Scripting (XSS) vulnerability in the RSS Widget of Netgate pfSense Plus (versions 26.03, 25.11.1) and pfSense CE (version 2.8.1) allows remote authenticated attackers to inject arbitrary JavaScript via malicious content in an RSS feed title. The injected script executes in the browser of any authenticated user who views the dashboard, due to insufficient sanitization of feed title data before rendering in the widget.

The record
Technical detail
CVSS v3.1
5.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00280 · 19.4th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-09-04T21:16Z
References (2)
https://docs.netgate.com/downloads/pfSense-SA-26_04.webgui.asc · [email protected]https://github.com/pfsense/pfsense/commit/9363ac5b8651a1c7a333180425ce7719070f95f9 · [email protected]
EPSS history
Timeline
  • 06 SEP 03:31Z
    EPSS moved — → 0%
    epss
  • 04 SEP 00:00Z
    Cross-Site Scripting (XSS) vulnerability in the RSS Widget of Netgate pfSense Plus (versions 26.03, 25.11.1) and pfSense CE (version 2.8.1) allows remote…
    cvelistv5