CVE-2026-22322: Phoenix Contact Fl Nat 2008

High severity, CVSS 7.1. EPSS: 0.3% chance of exploitation in the next 30 days.

A stored cross‑site scripting (XSS) vulnerability in the Link Aggregation configuration interface allows an unauthenticated remote attacker to create a trunk entry containing malicious HTML/JavaScript code. When the affected page is viewed, the injected script executes in the context of the victim’s browser, enabling unauthorized actions such as interface manipulation. The session cookie is secured by the httpOnly Flag. Therefore an attacker is not able to take over the session of an authenticated user.

Affected products

• Phoenix Contact Fl Nat 2008: from 0.0.0, before 3.53 (fixed in 3.53)
• Phoenix Contact Fl Nat 2208: from 0.0.0, before 3.53 (fixed in 3.53)
• Phoenix Contact Fl Nat 2304-2gc-2sfp: from 0.0.0, before 3.53 (fixed in 3.53)
• Phoenix Contact Fl Switch 2005: from 0.0.0, before 3.53 (fixed in 3.53)
• Phoenix Contact Fl Switch 2008: from 0.0.0, before 3.53 (fixed in 3.53)
• Phoenix Contact Fl Switch 2008f: from 0.0.0, before 3.53 (fixed in 3.53)
• Phoenix Contact Fl Switch 2016: from 0.0.0, before 3.53 (fixed in 3.53)
• Phoenix Contact Fl Switch 2105: from 0.0.0, before 3.53 (fixed in 3.53)
• Phoenix Contact Fl Switch 2108: from 0.0.0, before 3.53 (fixed in 3.53)
• Phoenix Contact Fl Switch 2116: from 0.0.0, before 3.53 (fixed in 3.53)
• Phoenix Contact Fl Switch 2204-2tc-2sfx: from 0.0.0, before 3.53 (fixed in 3.53)
• Phoenix Contact Fl Switch 2205: from 0.0.0, before 3.53 (fixed in 3.53)
• Phoenix Contact Fl Switch 2206-2fx: from 0.0.0, before 3.53 (fixed in 3.53)
• Phoenix Contact Fl Switch 2206-2fx Sm: from 0.0.0, before 3.53 (fixed in 3.53)
• Phoenix Contact Fl Switch 2206-2fx Sm St: from 0.0.0, before 3.53 (fixed in 3.53)
• Phoenix Contact Fl Switch 2206-2fx St: from 0.0.0, before 3.53 (fixed in 3.53)
• Phoenix Contact Fl Switch 2206-2sfx: from 0.0.0, before 3.53 (fixed in 3.53)
• Phoenix Contact Fl Switch 2206-2sfx Pn: from 0.0.0, before 3.53 (fixed in 3.53)
• Phoenix Contact Fl Switch 2206c-2fx: from 0.0.0, before 3.53 (fixed in 3.53)
• Phoenix Contact Fl Switch 2207-Fx: from 0.0.0, before 3.53 (fixed in 3.53)
• Phoenix Contact Fl Switch 2207-Fx Sm: from 0.0.0, before 3.53 (fixed in 3.53)
• Phoenix Contact Fl Switch 2208: from 0.0.0, before 3.53 (fixed in 3.53)
• Phoenix Contact Fl Switch 2208 Pn: from 0.0.0, before 3.53 (fixed in 3.53)
• Phoenix Contact Fl Switch 2208c: from 0.0.0, before 3.53 (fixed in 3.53)
• Phoenix Contact Fl Switch 2212-2tc-2sfx: from 0.0.0, before 3.53 (fixed in 3.53)
• and 52 more

Published 2026-03-18. Last modified 2026-06-17.