McAfee ePO Cross-Site Scripting vulnerability

published 2021-10-22 5y ago modified 2026-06-17 4mo ago also EUVD-2021-18709

cvss: 5.4; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 39%
public exploits: 0; none known

Stored Cross-Site Scripting vulnerability in McAfee ePolicy Orchestrator (ePO) prior to 5.10 Update 11 allows ePO administrators to inject arbitrary web script or HTML via multiple parameters where the administrator's entries were not correctly sanitized.

Patch / fix

fixed in 1

McAfee,LLC McAfee ePolicy Orchestrator (ePO) 5.10 CU 11

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Exploit prediction

0.46% chance of exploitation in the next 30 days, higher than 39% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	3.1	5.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
NVD	2.0	3.5	AV:N/AC:M/Au:S/C:N/I:P/A:N

Affected products

McAfee,LLC McAfee ePolicy Orchestrator (ePO)

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

kc.mcafee.com /corporate/index?page=content&id=SB10366
broken-link

Sources

CVE List CVE-2021-31834
NVD CVE-2021-31834

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