CVE-2026-20111
Stored XSS in Cisco Prime Infrastructure Web Interface
Publication date: 2026-02-04
Last updated on: 2026-03-10
Assigner: Cisco Systems, Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| cisco | prime_infrastructure | 3.10.6 |
| cisco | prime_infrastructure | to 3.9 (inc) |
| cisco | prime_infrastructure | From 3.10 (inc) to 3.10.6 (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. |
| CWE-798 | The product contains hard-coded credentials, such as a password or cryptographic key. |
Attack-Flow Graph
AI Powered Q&A
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
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How can this vulnerability be detected on my network or system? Can you suggest some commands?
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Can you explain this vulnerability to me?
CVE-2026-20111 is a medium-severity stored cross-site scripting (XSS) vulnerability in the web-based management interface of Cisco Prime Infrastructure.
This vulnerability occurs because the interface does not properly validate user-supplied input, allowing an authenticated remote attacker with valid administrative credentials to inject malicious script code into specific data fields.
A successful exploit enables the attacker to execute arbitrary scripts within the context of the affected interface or access sensitive browser-based information.
How can this vulnerability impact me? :
If exploited, this vulnerability allows an attacker with administrative credentials to execute arbitrary script code in the context of the Cisco Prime Infrastructure web interface.
This can lead to unauthorized access to sensitive browser-based information and potentially compromise the security of the management interface.
Because the attacker must have valid administrative credentials and user interaction is required, the risk is somewhat limited but still significant.
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, Cisco strongly recommends upgrading Cisco Prime Infrastructure to release 3.10.6 Security Update 02 or later, where the vulnerability is fixed.
There are no available workarounds or mitigations other than upgrading to the fixed release.
Customers should obtain the fixed software through Cisco or authorized partners and ensure their devices meet hardware and software requirements for the upgrade.
For additional assistance, contacting Cisco Technical Assistance Center (TAC) support is advised.