CVE-2022-20800Network attack vector

Browser script execution via unvalidated management input

Published Jul 6, 2022 · Updated Nov 6, 2024

Cross-site scripting in Cisco Unity Connection's web management interface allows remote attackers to execute scripts through a crafted link. The interface fails to validate user-supplied input before incorporating it into web output. The default configuration is affected, but a user must follow the link; exploitation exposes browser-based data and runs code in the interface's security context.

CVSS severity6.1
Medium
EPSS probability0.73%
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 Unity Connection's web management interface allows remote attackers to execute scripts through a crafted link. The interface fails to validate user-supplied input before incorporating it into web output. The default configuration is affected, but a user must follow the link; exploitation exposes browser-based data and runs code in the interface's security context.

The record

CVE
CVE-2022-20800
Published
Jul 6, 2022
Updated
Nov 6, 2024
Vendor
ClamAV
Product
Cisco Unity Connection
Classifications
CWE-79, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 6, 2022CVE publishedPublication date reported by the CVE source.
  2. Nov 6, 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 privilegesunauthenticated

What is affected?

ClamAV · Cisco Unity Connectionversion=n/a

Published CVSS scores

4.3NISTAV:N/AC:M/Au:N/C:N/I:P/A:N
6.1NISTCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
6.1Cisco Systems, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:X/RL:X/RC:X

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1204.001User Execution: Malicious 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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