CVE-2026-22322
Received Received - Intake

Stored XSS in Link Aggregation Interface Enables Remote Script Execution

Publication date: 2026-03-18

Last updated on: 2026-03-18

Assigner: CERT VDE

Description
A stored cross‑site scripting (XSS) vulnerability in the Link Aggregation configuration interface allows an unauthenticated remote attacker to create a trunk entry containing malicious HTML/JavaScript code. When the affected page is viewed, the injected script executes in the context of the victim’s browser, enabling unauthorized actions such as interface manipulation. The session cookie is secured by the httpOnly Flag. Therefore an attacker is not able to take over the session of an authenticated user.

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Meta Information

Published
2026-03-18
Last Modified
2026-03-18
Generated
2026-07-06
AI Q&A
2026-03-18
EPSS Evaluated
2026-07-05
NVD
CVE-2026-22322
EUVD
EUVD-2026-12791

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
phoenix_contact fl_switch to 3.53 (exc)
phoenix_contact fl_switch From 3.53 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
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.

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Executive Summary

This vulnerability is a stored cross-site scripting (XSS) issue found in the Link Aggregation configuration interface. An unauthenticated remote attacker can create a trunk entry that contains malicious HTML or JavaScript code. When a user views the affected page, the injected script runs in the context of that user's browser, allowing the attacker to perform unauthorized actions such as manipulating the interface.

However, the session cookie is protected by the httpOnly flag, which prevents the attacker from hijacking the session of an authenticated user.

Impact Analysis

This vulnerability can impact you by allowing an attacker to execute malicious scripts in your browser when you access the affected Link Aggregation configuration interface. This can lead to unauthorized actions such as manipulating the interface, potentially disrupting normal operations or causing unintended changes.

Although the attacker cannot hijack authenticated sessions due to the httpOnly flag on session cookies, the ability to execute scripts can still compromise the integrity and availability of the interface.

Compliance Impact

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