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CVE-2021-4038

NSM vulnerable to XSS

MEDIUM
4.8
CVSS Score
Published: December 9, 2021 at 03:55 PM UTC
Updated: June 17, 2026 at 04:18 AM UTC
1 product affected across 1 vendorNetwork Security Manager

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Severity
MEDIUM4.8
Exploit prediction
EPSS 0.6%

Description

Cross Site Scripting (XSS) vulnerability in McAfee Network Security Manager (NSM) prior to 10.1 Minor 7 allows a remote authenticated administrator to embed a XSS in the administrator interface via specially crafted custom rules containing HTML. NSM did not correctly sanitize custom rule content in all scenarios.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Network Security Manager· McAfee
95%
v < 10.1.7.48v < 10.7 M7
Affected range stops below 10.1.7.48, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.7 M7, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_CONFIRMBroken Link
Source: [email protected]
https://kc.mcafee.com/corporate/index?page=content&id=SB10375

CVSS

4.8MEDIUMtrellix
Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-79

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