CVE-2021-1130Network attack vector

Administrator-authenticated script execution via crafted link

Published Jan 13, 2021 · Updated Nov 12, 2024

Cross-site scripting in Cisco Catalyst Center's web interface before 2.2.1.0 allows remote authenticated users to execute scripts via crafted links. The interface fails to validate user-supplied input, but Cisco has not identified the affected endpoint or parameter. Exploitation requires administrative credentials and a victim who clicks the link; resulting scripts run in the interface context and can access browser-based information.

CVSS severity4.8
Medium
EPSS probability0.82%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in Cisco Catalyst Center's web interface before 2.2.1.0 allows remote authenticated users to execute scripts via crafted links. The interface fails to validate user-supplied input, but Cisco has not identified the affected endpoint or parameter. Exploitation requires administrative credentials and a victim who clicks the link; resulting scripts run in the interface context and can access browser-based information.

The record

CVE
CVE-2021-1130
Published
Jan 13, 2021
Updated
Nov 12, 2024
Vendor
ClamAV
Product
Cisco Catalyst Center
Classifications
CWE-79, T1203, T1204.001
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jan 13, 2021CVE publishedPublication date reported by the CVE source.
  2. Nov 12, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=n/a

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

ClamAV · Cisco Catalyst Centerversion=n/a

Published CVSS scores

4.8Cisco Systems, Inc.CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N/E:X/RL:X/RC:X
3.5NIST NVDAV:N/AC:M/Au:S/C:N/I:P/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution
T1204.001Malicious Link

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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