CVE-2024-20310Network attack vector

Browser script execution via unvalidated crafted link

Published Apr 3, 2024 · Updated Aug 1, 2024

Cross-site scripting in Cisco Unified CM IM&P 14 SU2a and earlier allows remote attackers to execute script through a crafted link. The web-based management interface fails to validate user-supplied input from the link before incorporating it into a page, enabling arbitrary script execution. An authenticated interface user must click the link; the script then runs in that interface's browser context and can access sensitive browser-based information.

CVSS severity6.1
Medium
EPSS probability0.50%
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 Unified CM IM&P 14 SU2a and earlier allows remote attackers to execute script through a crafted link. The web-based management interface fails to validate user-supplied input from the link before incorporating it into a page, enabling arbitrary script execution. An authenticated interface user must click the link; the script then runs in that interface's browser context and can access sensitive browser-based information.

The record

CVE
CVE-2024-20310
Published
Apr 3, 2024
Updated
Aug 1, 2024
Vendor
ClamAV
Product
Cisco IOS XE Software
Classifications
CWE-23, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 3, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 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 IOS XE Softwareversion=N/A
ClamAV · Cisco Unified Communications Manager IM and Presence Serviceversion=10.0(1); version=10.0\(1\); version=10.0\(1\)su1; version=10.0(1)SU1; version=10.0\(1\)su2; version=10.0(1)SU2; version=10.5(1); version=10.5\(1\); version=10.5\(1\)su1; version=10.5(1)SU1; version=10.5\(1\)su2; version=10.5(1)SU2; version=10.5(1)SU3; version=10.5(2); version=10.5\(2\); version=10.5(2a); version=10.5\(2a\); version=10.5(2b); version=10.5\(2b\); version=10.5\(2\)su1; version=10.5(2)SU1; version=10.5\(2\)su2; version=10.5(2)SU2; version=10.5\(2\)su2a; version=10.5(2)SU2a; version=10.5\(2\)su3; version=10.5(2)SU3; version=10.5\(2\)su4; version=10.5(2)SU4; version=10.5\(2\)su4a; version=10.5(2)SU4a; version=11.0(1); version=11.0\(1\); version=11.0\(1\)su1; version=11.0(1)SU1; version=11.5(1); version=11.5\(1\); version=11.5(1)SU1; version=11.5(1)SU10; version=11.5\(1\)su11; version=11.5(1)SU11; version=11.5\(1\)su2; version=11.5(1)SU2; version=11.5\(1\)su3; version=11.5(1)SU3; version=11.5\(1\)su3a; version=11.5(1)SU3a; version=11.5\(1\)su4; version=11.5(1)SU4; version=11.5\(1\)su5; version=11.5(1)SU5; version=11.5\(1\)su5a; version=11.5(1)SU5a; version=11.5\(1\)su6; version=11.5(1)SU6; version=11.5\(1\)su7; version=11.5(1)SU7; version=11.5\(1\)su8; version=11.5(1)SU8; version=11.5\(1\)su9; version=11.5(1)SU9; version=12.5(1); version=12.5\(1\); version=12.5\(1\)su1; version=12.5(1)SU1; version=12.5\(1\)su2; version=12.5(1)SU2; version=12.5\(1\)su3; version=12.5(1)SU3; version=12.5\(1\)su4; version=12.5(1)SU4; version=12.5\(1\)su5; version=12.5(1)SU5; version=12.5\(1\)su6; version=12.5(1)SU6; version=12.5\(1\)su7; version=12.5(1)SU7; version=14; version=14.0; version=14.0su1; version=14SU1; version=14SU2; version=14SU2a

Published CVSS scores

6.1Cisco Systems, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-23Relative Path Traversal
T1203Exploitation for Client Execution

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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