CVE-2022-20967Network attack vector

Stored XSS via unsanitized RADIUS entries

Published Jan 18, 2023 · Updated Aug 3, 2024

Stored XSS in affected Cisco Identity Services Engine releases allows remote authenticated users to run script in another user's browser. The External RADIUS Server feature stores entry fields containing HTML or script code without properly validating the input before later display. High-privilege ISE access is required to create the entry, and a different user must view it; impact is confined to that user's browser context.

CVSS severity4.8
Medium
EPSS probability0.54%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in affected Cisco Identity Services Engine releases allows remote authenticated users to run script in another user's browser. The External RADIUS Server feature stores entry fields containing HTML or script code without properly validating the input before later display. High-privilege ISE access is required to create the entry, and a different user must view it; impact is confined to that user's browser context.

The record

CVE
CVE-2022-20967
Published
Jan 18, 2023
Updated
Aug 3, 2024
Vendor
ClamAV
Product
Cisco Identity Services Engine
Classifications
CWE-79, T1203
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jan 18, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=2.6.0
  2. Affected versionversion=2.6.0 p1
  3. Affected versionversion=2.6.0 p10
  4. Affected versionversion=2.6.0 p11
  5. Affected versionversion=2.6.0 p12
  6. Affected versionversion=2.6.0 p2
  7. Affected versionversion=2.6.0 p3
  8. Affected versionversion=2.6.0 p5
  9. Affected versionversion=2.6.0 p6
  10. Affected versionversion=2.6.0 p7
  11. Affected versionversion=2.6.0 p8
  12. Affected versionversion=2.6.0 p9
  13. Affected versionversion=2.7.0
  14. Affected versionversion=2.7.0 p1
  15. Affected versionversion=2.7.0 p2
  16. Affected versionversion=2.7.0 p3
  17. Affected versionversion=2.7.0 p4
  18. Affected versionversion=2.7.0 p5
  19. Affected versionversion=2.7.0 p6
  20. Affected versionversion=2.7.0 p7
  21. Affected versionversion=3.0.0
  22. Affected versionversion=3.0.0 p1
  23. Affected versionversion=3.0.0 p2
  24. Affected versionversion=3.0.0 p3
  25. Affected versionversion=3.0.0 p4
  26. Affected versionversion=3.0.0 p5
  27. Affected versionversion=3.0.0 p6
  28. Affected versionversion=3.1.0
  29. Affected versionversion=3.1.0 p1
  30. Affected versionversion=3.1.0 p3
  31. Affected versionversion=3.1.0 p4
  32. Affected versionversion=3.1.0 p5
  33. Affected versionversion=3.2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

ClamAV · Cisco Identity Services Engineversion=2.6.0; version=2.6.0 p1; version=2.6.0 p10; version=2.6.0 p11; version=2.6.0 p12; version=2.6.0 p2; version=2.6.0 p3; version=2.6.0 p5; version=2.6.0 p6; version=2.6.0 p7; version=2.6.0 p8; version=2.6.0 p9; version=2.7.0; version=2.7.0 p1; version=2.7.0 p2; version=2.7.0 p3; version=2.7.0 p4; version=2.7.0 p5; version=2.7.0 p6; version=2.7.0 p7; version=3.0.0; version=3.0.0 p1; version=3.0.0 p2; version=3.0.0 p3; version=3.0.0 p4; version=3.0.0 p5; version=3.0.0 p6; version=3.1.0; version=3.1.0 p1; version=3.1.0 p3; version=3.1.0 p4; version=3.1.0 p5; version=3.2.0

Published CVSS scores

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
4.8Cisco Systems, Inc.CVSS:3.1/AV:N/AC:L/PR:H/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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
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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