CVE-2026-22322
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
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| phoenix_contact | fl_switch | to 3.53 (exc) |
| phoenix_contact | fl_switch | From 3.53 (inc) |
Helpful Resources
Exploitability
| 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. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
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.
How can this vulnerability impact me? :
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.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know