CVE-2026-38961: n/a
Description
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.
CVSS v3.1
Score 5.4medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves improper sanitization of RSS feed title data in the pfSense dashboard widget, enabling authenticated remote attackers to inject and execute arbitrary JavaScript code in the context of other authenticated users' browsers. The affected products are Netgate pfSense Plus versions 26.03 and 25.11.1, and pfSense CE version 2.8.1. The attack requires authentication and user interaction (viewing the dashboard).
Potential Impact
Successful exploitation can lead to execution of arbitrary JavaScript in the context of authenticated users, potentially allowing theft of session tokens, user impersonation, or other actions permitted by the user's privileges. The vulnerability does not impact availability and requires user interaction and authentication.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to the dashboard to trusted users only and avoid adding untrusted RSS feeds. Monitor vendor communications for official patches or updates.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-04-06T00:00:00.000Z
- State
- PUBLISHED
Threat ID: 6a9af764acd9273b49e7791e
Added to database: 09/04/2026, 16:52:52 UTC
Last enriched: 09/15/2026, 00:14:52 UTC
Last updated: 10/17/2026, 18:48:19 UTC
Views: 88
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