Unauthenticated Stored Cross-Site Scripting (XSS) Vulnerability in ClearPass Policy Manager Web-Based Management Interface

published 2026-10-06 last mo. modified 2026-10-07 last mo. also EUVD-2026-93886

cvss: 8.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 26%
public exploits: 0; none known

A vulnerability in the web-based management interface of ClearPass Policy Manager could allow an unauthenticated remote attacker to conduct a stored cross-site scripting (XSS) attack against an administrative user of the interface. A successful exploit could allow an attacker to execute arbitrary script code in a victim's browser in the context of the affected interface.

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CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: last mo. (2026-10-07)

Exploit prediction

0.33% chance of exploitation in the next 30 days, higher than 26% of all scored CVEs (FIRST EPSS, 2026-11-11).

CVSS scores

assigned by	version	score	vector
CNA	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

Hewlett Packard Enterprise (HPE) ClearPass Policy Manager (CPPM)

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

support.hpe.com /hpesc/public/docDisplay?docId=hpesbnw05158en_us&docLocale=en_US

Sources

CVE List CVE-2026-79799
NVD CVE-2026-79799

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