CVE-2025-20356Network attack vector

Stored XSS via insufficient Sensor Explorer validation

Published Oct 1, 2025 · Updated Oct 1, 2025

Stored XSS in Cisco Cyber Vision Center 5.2 and earlier allows remote authenticated users to execute script in an interface user's browser. The Sensor Explorer page insufficiently validates injected input and later renders it as active script in the affected web interface. Administrative credentials with Sensors-page access and a user who opens the affected content are required; script can act in that interface context or read browser-held information.

CVSS severity5.4
Medium
EPSS probability0.21%
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 Cisco Cyber Vision Center 5.2 and earlier allows remote authenticated users to execute script in an interface user's browser. The Sensor Explorer page insufficiently validates injected input and later renders it as active script in the affected web interface. Administrative credentials with Sensors-page access and a user who opens the affected content are required; script can act in that interface context or read browser-held information.

The record

CVE
CVE-2025-20356
Published
Oct 1, 2025
Updated
Oct 1, 2025
Vendor
ClamAV
Product
Cisco Cyber Vision
Classifications
CWE-79, CAPEC-592, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Oct 1, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 1, 2025Record 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=3.0.0
  2. Affected versionversion=3.0.1
  3. Affected versionversion=3.0.2
  4. Affected versionversion=3.0.3
  5. Affected versionversion=3.0.4
  6. Affected versionversion=3.0.5
  7. Affected versionversion=3.0.6
  8. Affected versionversion=3.1.0
  9. Affected versionversion=3.1.1
  10. Affected versionversion=3.1.2
  11. Affected versionversion=3.2.0
  12. Affected versionversion=3.2.1
  13. Affected versionversion=3.2.2
  14. Affected versionversion=3.2.3
  15. Affected versionversion=3.2.4
  16. Affected versionversion=4.0.0
  17. Affected versionversion=4.0.1
  18. Affected versionversion=4.0.2
  19. Affected versionversion=4.0.3
  20. Affected versionversion=4.1.0
  21. Affected versionversion=4.1.1
  22. Affected versionversion=4.1.2
  23. Affected versionversion=4.1.3
  24. Affected versionversion=4.1.4
  25. Affected versionversion=4.1.5
  26. Affected versionversion=4.1.6
  27. Affected versionversion=4.1.7
  28. Affected versionversion=4.2.0
  29. Affected versionversion=4.2.1
  30. Affected versionversion=4.2.2
  31. Affected versionversion=4.2.3
  32. Affected versionversion=4.2.4
  33. Affected versionversion=4.2.6
  34. Affected versionversion=4.2.X
  35. Affected versionversion=4.3.0
  36. Affected versionversion=4.3.1
  37. Affected versionversion=4.3.2
  38. Affected versionversion=4.3.3
  39. Affected versionversion=4.4.0
  40. Affected versionversion=4.4.1
  41. Affected versionversion=4.4.2
  42. Affected versionversion=4.4.3
  43. Affected versionversion=5.0.0
  44. Affected versionversion=5.0.1
  45. Affected versionversion=5.0.2
  46. Affected versionversion=5.1.0
  47. Affected versionversion=5.1.1
  48. Affected versionversion=5.1.2
  49. Affected versionversion=5.1.3
  50. Affected versionversion=5.2.0
  51. Affected versionversion=5.2.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

ClamAV · Cisco Cyber Visionversion=3.0.0; version=3.0.1; version=3.0.2; version=3.0.3; version=3.0.4; version=3.0.5; version=3.0.6; version=3.1.0; version=3.1.1; version=3.1.2; version=3.2.0; version=3.2.1; version=3.2.2; version=3.2.3; version=3.2.4; version=4.0.0; version=4.0.1; version=4.0.2; version=4.0.3; version=4.1.0; version=4.1.1; version=4.1.2; version=4.1.3; version=4.1.4; version=4.1.5; version=4.1.6; version=4.1.7; version=4.2.0; version=4.2.1; version=4.2.2; version=4.2.3; version=4.2.4; version=4.2.6; version=4.2.X; version=4.3.0; version=4.3.1; version=4.3.2; version=4.3.3; version=4.4.0; version=4.4.1; version=4.4.2; version=4.4.3; version=5.0.0; version=5.0.1; version=5.0.2; version=5.1.0; version=5.1.1; version=5.1.2; version=5.1.3; version=5.2.0; version=5.2.1

Published CVSS scores

5.4Cisco Systems, Inc.CVSS:3.1/AV:N/AC:L/PR:L/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')
CAPEC-592Stored XSS
T1059.007JavaScript/JScript

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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