CVE-2025-41751CWE-79cross-site-scripting

CVE-2025-41751

High · published December 9, 2025

CVSS v3.1
7.1
EPSS
10%
Percentile
95.5
In the wild
Unconfirmed
What it is

⚡ A crafty trick could turn your users into unwitting accomplices! An XSS vulnerability in pxc_portCntr.php allows an attacker to lure authenticated users into clicking a malicious link, potentially changing critical device configuration. 😱 Think of this like a phishing email that masquerades as a friendly invitation to an event. While it won’t give the attacker the keys to your castle, it might let them rearrange the furniture inside, causing chaos for your operations. An attacker could manipulate the parameters available in the web-based management interface, leading to unauthorized changes that could disrupt device settings. This might not grant full access, but the mischief they can create could significantly affect how your system functions.

Put simply

Think of this like a phishing email that masquerades as a friendly invitation to an event. While it won’t give the attacker the keys to your castle, it might let them rearrange the furniture inside, causing chaos for your operations. This XSS vulnerability allows an unauthenticated remote attacker to inject malicious scripts into a link, which, when clicked by an authenticated user, modifies device configuration parameters through the web interface. While session cookies are secured with the httpOnly flag, this attack relies on user interaction to be effective.

What to do

An attacker could manipulate the parameters available in the web-based management interface, leading to unauthorized changes that could disrupt device settings. This might not grant full access, but the mischief they can create could significantly affect how your system functions. To mitigate this risk, update to the latest version of your software where this issue is patched. Additionally, educate users about the dangers of clicking unsolicited links and implement Content Security Policies (CSP) to further protect against XSS attacks. This is fixable! Stay vigilant, implement these steps, and you'll have a stronger defense in no time! 🛡️

The record
Technical detail
CVSS v3.1
7.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.09765 · 95.5th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2025-12-09T21:17Z
Affected products (69)
ProductVersionsFixed in
phoenixcontact/fl_nat_2008_firmware< 3.503.50
phoenixcontact/fl_nat_2208_firmware< 3.503.50
phoenixcontact/fl_nat_2304-2gc-2sfp_firmware< 3.503.50
phoenixcontact/fl_switch_2005_firmware< 3.503.50
phoenixcontact/fl_switch_2008_firmware< 3.503.50
phoenixcontact/fl_switch_2008f_firmware< 3.503.50
phoenixcontact/fl_switch_2016_firmware< 3.503.50
phoenixcontact/fl_switch_2105_firmware< 3.503.50
phoenixcontact/fl_switch_2108_firmware< 3.503.50
phoenixcontact/fl_switch_2116_firmware< 3.503.50
phoenixcontact/fl_switch_2204-2tc-2sfx_firmware< 3.503.50
phoenixcontact/fl_switch_2205_firmware< 3.503.50
phoenixcontact/fl_switch_2206-2fx_firmware< 3.503.50
phoenixcontact/fl_switch_2206-2fx_sm_firmware< 3.503.50
phoenixcontact/fl_switch_2206-2fx_sm_st_firmware< 3.503.50
phoenixcontact/fl_switch_2206-2fx_st_firmware< 3.503.50
phoenixcontact/fl_switch_2206-2sfx_firmware< 3.503.50
phoenixcontact/fl_switch_2206-2sfx_pn_firmware< 3.503.50
phoenixcontact/fl_switch_2206c-2fx_firmware< 3.503.50
phoenixcontact/fl_switch_2207-fx_firmware< 3.503.50
phoenixcontact/fl_switch_2207-fx_sm_firmware< 3.503.50
phoenixcontact/fl_switch_2208_firmware< 3.503.50
phoenixcontact/fl_switch_2208_pn_firmware< 3.503.50
phoenixcontact/fl_switch_2208c_firmware< 3.503.50
phoenixcontact/fl_switch_2212-2tc-2sfx_firmware< 3.503.50
phoenixcontact/fl_switch_2214-2fx_firmware< 3.503.50
phoenixcontact/fl_switch_2214-2fx_sm_firmware< 3.503.50
phoenixcontact/fl_switch_2214-2sfx_firmware< 3.503.50
phoenixcontact/fl_switch_2214-2sfx_pn_firmware< 3.503.50
phoenixcontact/fl_switch_2216_firmware< 3.503.50
phoenixcontact/fl_switch_2216_pn_firmware< 3.503.50
phoenixcontact/fl_switch_2303-8sp1< 3.5.03.5.0
phoenixcontact/fl_switch_2304-2gc-2sfp_firmware< 3.503.50
phoenixcontact/fl_switch_2306-2sfp_firmware< 3.503.50
phoenixcontact/fl_switch_2306-2sfp_pn_firmware< 3.503.50
phoenixcontact/fl_switch_2308_firmware< 3.503.50
phoenixcontact/fl_switch_2308_pn_firmware< 3.503.50
phoenixcontact/fl_switch_2312-2gc-2sfp_firmware< 3.503.50
phoenixcontact/fl_switch_2314-2sfp_firmware< 3.503.50
phoenixcontact/fl_switch_2314-2sfp_pn_firmware< 3.503.50
phoenixcontact/fl_switch_2316\/k1_firmware< 3.503.50
phoenixcontact/fl_switch_2316_firmware< 3.503.50
phoenixcontact/fl_switch_2316_pn_firmware< 3.503.50
phoenixcontact/fl_switch_2404-2tc-2sfx_firmware< 3.503.50
phoenixcontact/fl_switch_2406-2sfx_firmware< 3.503.50
phoenixcontact/fl_switch_2406-2sfx_pn_firmware< 3.503.50
phoenixcontact/fl_switch_2408_firmware< 3.503.50
phoenixcontact/fl_switch_2408_pn_firmware< 3.503.50
phoenixcontact/fl_switch_2412-2tc-2sfx_firmware< 3.503.50
phoenixcontact/fl_switch_2414-2sfx_firmware< 3.503.50
phoenixcontact/fl_switch_2414-2sfx_pn_firmware< 3.503.50
phoenixcontact/fl_switch_2416_firmware< 3.503.50
phoenixcontact/fl_switch_2416_pn_firmware< 3.503.50
phoenixcontact/fl_switch_2504-2gc-2sfp_firmware< 3.503.50
phoenixcontact/fl_switch_2506-2sfp\/k1_firmware< 3.503.50
phoenixcontact/fl_switch_2506-2sfp_firmware< 3.503.50
phoenixcontact/fl_switch_2506-2sfp_pn_firmware< 3.503.50
phoenixcontact/fl_switch_2508\/k1_firmware< 3.503.50
phoenixcontact/fl_switch_2508_firmware< 3.503.50
phoenixcontact/fl_switch_2508_pn_firmware< 3.503.50
phoenixcontact/fl_switch_2512-2gc-2sfp_firmware< 3.503.50
phoenixcontact/fl_switch_2514-2sfp_firmware< 3.503.50
phoenixcontact/fl_switch_2514-2sfp_pn_firmware< 3.503.50
phoenixcontact/fl_switch_2516_firmware< 3.503.50
phoenixcontact/fl_switch_2516_pn_firmware< 3.503.50
phoenixcontact/fl_switch_2608_firmware< 3.503.50
phoenixcontact/fl_switch_2608_pn_firmware< 3.503.50
phoenixcontact/fl_switch_2708_firmware< 3.503.50
phoenixcontact/fl_switch_2708_pn_firmware< 3.503.50
References (1)
EPSS history
Timeline
  • 09 DEC 08:07Z
    Reflected XSS vulnerability in pxc_portCntr.php
    cvelistv5