Description
An XSS vulnerability in pxc_PortCfg.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.
Affected products
phoenixcontact: fl switch 2008f firmware; phoenixcontact: fl switch 2008f; phoenixcontact: fl switch 2016 firmware; phoenixcontact: fl switch 2016; phoenixcontact: fl switch 2105 firmware; phoenixcontact: fl switch 2105; phoenixcontact: fl switch 2108 firmware; phoenixcontact: fl switch 2108; phoenixcontact: fl switch 2116 firmware; phoenixcontact: fl switch 2116; phoenixcontact: fl switch 2204-2tc-2sfx firmware; phoenixcontact: fl switch 2204-2tc-2sfx; phoenixcontact: fl switch 2205 firmware; phoenixcontact: fl switch 2205; phoenixcontact: fl switch 2206-2fx firmware
References1
- certvde.com/de/advisories/VDE-2025-071 Vendor Advisory
Metrics
- CVSS 3.1
-
7.1
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L - EPSS — exploit probability
- 10% percentile: 96 · as of 11 November 2026
- CWE
- CWE-79
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.