CVE-2020-3159Network attack vector

Script execution via insufficient web input validation

Published Feb 19, 2020 · Updated Nov 15, 2024

Cross-site scripting in Cisco Finesse before 12.5(1) allows remote attackers to execute script in a user's interface through a malicious link. The web-based management interface insufficiently validates user-supplied link input before incorporating it into browser-rendered content. A user must open the link; successful exploitation runs script in the affected interface's context or exposes sensitive browser-based information.

CVSS severity6.1
Medium
EPSS probability0.80%
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 Finesse before 12.5(1) allows remote attackers to execute script in a user's interface through a malicious link. The web-based management interface insufficiently validates user-supplied link input before incorporating it into browser-rendered content. A user must open the link; successful exploitation runs script in the affected interface's context or exposes sensitive browser-based information.

The record

CVE
CVE-2020-3159
Published
Feb 19, 2020
Updated
Nov 15, 2024
Vendor
ClamAV
Product
Cisco Finesse
Classifications
CWE-79, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 19, 2020CVE publishedPublication date reported by the CVE source.
  2. Nov 15, 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=unspecified <n/a

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ClamAV · Cisco Finesseversion=unspecified <n/a

Published CVSS scores

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:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:X/RL:X/RC:X
4.3NISTAV:N/AC:M/Au:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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')
T1189Drive-by Compromise

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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