CVE-2025-41695
High
Description
An XSS vulnerability in dyn_conn.php can be used by an unauthenticated remote attacker to trick an authenticated user to send a manipulated POST request to the device 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.
SeverityHigh
CVSS7.1
Exploit probability—
ProductPhoenixcontact Fl Nat 2008 Firmware
PublishedDec 9, 2025
First seenDec 9, 2025
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- phoenixcontact fl_nat_2008_firmware3.50 or later
- phoenixcontact fl_nat_2208_firmware3.50 or later
- phoenixcontact fl_nat_2304-2gc-2sfp_firmware3.50 or later
- phoenixcontact fl_switch_2005_firmware3.50 or later
- phoenixcontact fl_switch_2008_firmware3.50 or later
- phoenixcontact fl_switch_2008f_firmware3.50 or later
- phoenixcontact fl_switch_2016_firmware3.50 or later
- phoenixcontact fl_switch_2105_firmware3.50 or later
- phoenixcontact fl_switch_2108_firmware3.50 or later
- phoenixcontact fl_switch_2116_firmware3.50 or later
- phoenixcontact fl_switch_2204-2tc-2sfx_firmware3.50 or later
- phoenixcontact fl_switch_2205_firmware3.50 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| phoenixcontact fl_nat_2008_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_nat_2208_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_nat_2304-2gc-2sfp_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2005_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2008_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2008f_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2016_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2105_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2108_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2116_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2204-2tc-2sfx_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2205_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2206-2fx_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2206-2fx_sm_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2206-2fx_sm_st_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2206-2fx_st_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2206-2sfx_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2206-2sfx_pn_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2206c-2fx_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2207-fx_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2207-fx_sm_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2208_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2208_pn_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2208c_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2212-2tc-2sfx_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2214-2fx_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2214-2fx_sm_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2214-2sfx_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2214-2sfx_pn_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2216_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2216_pn_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2303-8sp1 | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2304-2gc-2sfp_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2306-2sfp_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2306-2sfp_pn_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2308_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2308_pn_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2312-2gc-2sfp_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2314-2sfp_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2314-2sfp_pn_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2316_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2316\/k1_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2316_pn_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2404-2tc-2sfx_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2406-2sfx_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2406-2sfx_pn_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2408_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2408_pn_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2412-2tc-2sfx_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2414-2sfx_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2414-2sfx_pn_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2416_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2416_pn_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2504-2gc-2sfp_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2506-2sfp_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2506-2sfp\/k1_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2506-2sfp_pn_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2508_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2508\/k1_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2508_pn_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2512-2gc-2sfp_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2514-2sfp_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2514-2sfp_pn_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2516_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2516_pn_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2608_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2608_pn_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2708_firmware | v < 3.50 | 3.50 |
| phoenixcontact fl_switch_2708_pn_firmware | v < 3.50 | 3.50 |
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