CVE-2023-43509Network attack vector

Unauthenticated phishing via arbitrary endpoint notifications

Published Oct 24, 2023 · Updated Sep 11, 2024

Cross-site scripting in HPE Aruba Networking ClearPass Policy Manager allows remote attackers to send endpoint phishing notifications. HPE has not published the affected endpoint or how it accepts and renders attacker-controlled notification content for ClearPass OnGuard clients. The management interface must be network-reachable; exploitation changes notification content but has no reported ability to read data or interrupt service.

CVSS severity5.8
Medium
EPSS probability0.57%
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 HPE Aruba Networking ClearPass Policy Manager allows remote attackers to send endpoint phishing notifications. HPE has not published the affected endpoint or how it accepts and renders attacker-controlled notification content for ClearPass OnGuard clients. The management interface must be network-reachable; exploitation changes notification content but has no reported ability to read data or interrupt service.

The record

CVE
CVE-2023-43509
Published
Oct 24, 2023
Updated
Sep 11, 2024
Vendor
Hewlett Packard Enterprise (HPE)
Product
HPE Aruba Networking ClearPass Policy Manager
Classifications
CWE-79, T1566
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 24, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 11, 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=6.10x <6.10.8
  2. Affected versionversion=6.11x <=6.11.4
  3. Affected versionversion=6.9x <6.9.13
  4. Affected versionversion=ClearPass Policy Manager 6.10.x: 6.10.8 with ClearPass 6.10.8 Cumulative Hotfix Patch 5 and below
  5. Affected versionversion=ClearPass Policy Manager 6.11.x: 6.11.4 and below <=<=6.11.4
  6. Affected versionversion=ClearPass Policy Manager 6.9.x: 6.9.13 with ClearPass 6.9.13 Cumulative Hotfix Patch 3 and below

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Hewlett Packard Enterprise (HPE) · HPE Aruba Networking ClearPass Policy Managerversion=6.10x <6.10.8; version=6.11x <=6.11.4; version=6.9x <6.9.13; version=ClearPass Policy Manager 6.10.x: 6.10.8 with ClearPass 6.10.8 Cumulative Hotfix Patch 5 and below; version=ClearPass Policy Manager 6.11.x: 6.11.4 and below <=<=6.11.4; version=ClearPass Policy Manager 6.9.x: 6.9.13 with ClearPass 6.9.13 Cumulative Hotfix Patch 3 and below

Published CVSS scores

5.8Hewlett Packard Enterprise (HPE)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/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-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1566Phishing

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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