Phoenix Contact K1 up to 3.49 dyn_conn.php cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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5.6$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Phoenix Contact FL SWITCH 2005, FL SWITCH 2008, FL SWITCH 2016, FL SWITCH 2105, FL SWITCH 2108, FL SWITCH 2116, FL SWITCH 2204-2TC-2SFX, FL SWITCH 2205, FL SWITCH 2206-2FX, FL SWITCH 2206-2FX SM, FL SWITCH 2206-2FX SM ST, FL SWITCH 2206-2FX ST, FL SWITCH 2206-2SFX, FL SWITCH 2206-2SFX PN, FL SWITCH 2206C-2FX, FL SWITCH 2207-FX, FL SWITCH 2207-FX SM, FL SWITCH 2208, FL SWITCH 2208 PN, FL SWITCH 2208C, FL SWITCH 2212-2TC-2SFX, FL SWITCH 2214-2FX, FL SWITCH 2214-2FX SM, FL SWITCH 2214-2SFX, FL SWITCH 2214-2SFX PN, FL SWITCH 2216, FL SWITCH 2216 PN, FL SWITCH 2304-2GC-2SFP, FL SWITCH 2306-2SFP, FL SWITCH 2306-2SFP PN, FL SWITCH 2308, FL SWITCH 2308 PN, FL SWITCH 2312-2GC-2SFP, FL SWITCH 2314-2SFP, FL SWITCH 2314-2SFP PN, FL SWITCH 2316, FL SWITCH 2316 PN, FL SWITCH 2404-2TC-2SFX, FL SWITCH 2406-2SFX, FL SWITCH 2406-2SFX PN, FL SWITCH 2408, FL SWITCH 2408 PN, FL SWITCH 2412-2TC-2SFX, FL SWITCH 2414-2SFX, FL SWITCH 2414-2SFX PN, FL SWITCH 2416, FL SWITCH 2416 PN, FL SWITCH 2504-2GC-2SFP, FL SWITCH 2506-2SFP, FL SWITCH 2506-2SFP PN, FL SWITCH 2508, FL SWITCH 2508 PN, FL SWITCH 2512-2GC-2SFP, FL SWITCH 2514-2SFP, FL SWITCH 2514-2SFP PN, FL SWITCH 2516, FL SWITCH 2516 PN, FL SWITCH 2608, FL SWITCH 2608 PN, FL SWITCH 2708, FL SWITCH 2708 PN, FL SWITCH 2303-8SP1, FL NAT 2008, FL NAT 2208, FL NAT 2304-2GC-2SFP, FL SWITCH 2008F and K1 up to 3.49. Affected by this issue is some unknown functionality of the file dyn_conn.php. This manipulation causes cross site scripting. This vulnerability is tracked as CVE-2025-41695. The attack is possible to be carried out remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Phoenix Contact FL SWITCH 2005, FL SWITCH 2008, FL SWITCH 2016, FL SWITCH 2105, FL SWITCH 2108, FL SWITCH 2116, FL SWITCH 2204-2TC-2SFX, FL SWITCH 2205, FL SWITCH 2206-2FX, FL SWITCH 2206-2FX SM, FL SWITCH 2206-2FX SM ST, FL SWITCH 2206-2FX ST, FL SWITCH 2206-2SFX, FL SWITCH 2206-2SFX PN, FL SWITCH 2206C-2FX, FL SWITCH 2207-FX, FL SWITCH 2207-FX SM, FL SWITCH 2208, FL SWITCH 2208 PN, FL SWITCH 2208C, FL SWITCH 2212-2TC-2SFX, FL SWITCH 2214-2FX, FL SWITCH 2214-2FX SM, FL SWITCH 2214-2SFX, FL SWITCH 2214-2SFX PN, FL SWITCH 2216, FL SWITCH 2216 PN, FL SWITCH 2304-2GC-2SFP, FL SWITCH 2306-2SFP, FL SWITCH 2306-2SFP PN, FL SWITCH 2308, FL SWITCH 2308 PN, FL SWITCH 2312-2GC-2SFP, FL SWITCH 2314-2SFP, FL SWITCH 2314-2SFP PN, FL SWITCH 2316, FL SWITCH 2316 PN, FL SWITCH 2404-2TC-2SFX, FL SWITCH 2406-2SFX, FL SWITCH 2406-2SFX PN, FL SWITCH 2408, FL SWITCH 2408 PN, FL SWITCH 2412-2TC-2SFX, FL SWITCH 2414-2SFX, FL SWITCH 2414-2SFX PN, FL SWITCH 2416, FL SWITCH 2416 PN, FL SWITCH 2504-2GC-2SFP, FL SWITCH 2506-2SFP, FL SWITCH 2506-2SFP PN, FL SWITCH 2508, FL SWITCH 2508 PN, FL SWITCH 2512-2GC-2SFP, FL SWITCH 2514-2SFP, FL SWITCH 2514-2SFP PN, FL SWITCH 2516, FL SWITCH 2516 PN, FL SWITCH 2608, FL SWITCH 2608 PN, FL SWITCH 2708, FL SWITCH 2708 PN, FL SWITCH 2303-8SP1, FL NAT 2008, FL NAT 2208, FL NAT 2304-2GC-2SFP, FL SWITCH 2008F and K1 up to 3.49. Affected by this vulnerability is an unknown code of the file dyn_conn.php. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. The summary by CVE is:

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.

The weakness was disclosed by D. Blagojevic, S. Dietz, F. Koroknai and T. Weber as VDE-2025-071. The advisory is shared at certvde.com. This vulnerability is known as CVE-2025-41695 since 04/16/2025. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

By approaching the search of inurl:dyn_conn.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 3.50 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-201894). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.6

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.1
CNA Vector (CERTVDE): 🔒

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Google Hack: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

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

Timelineinfo

04/16/2025 CVE reserved
12/09/2025 +237 days Advisory disclosed
12/09/2025 +0 days VulDB entry created
12/09/2025 +0 days VulDB entry last update

Sourcesinfo

Advisory: VDE-2025-071
Researcher: D. Blagojevic, S. Dietz, F. Koroknai, T. Weber
Status: Confirmed

CVE: CVE-2025-41695 (🔒)
GCVE (CVE): GCVE-0-2025-41695
GCVE (VulDB): GCVE-100-335017
EUVD: 🔒

Entryinfo

Created: 12/09/2025 09:56
Updated: 12/09/2025 10:38
Changes: 12/09/2025 09:56 (66), 12/09/2025 10:38 (1)
Complete: 🔍
Cache ID: 216:7EC:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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