CVE-2024-56917Public exploitNetwork attack vector

Browser script execution via unsanitized maintenance banner

Published Jun 24, 2025 · Updated Jun 24, 2025

Stored XSS in NetBox Community Edition 4.1.7 through 4.2.1 allows remote authenticated users to execute JavaScript in users' browsers. The warning alert template renders the user-controlled maintenance-banner message as HTML without sanitizing it, causing the payload to run on pages displaying the warning. An account permitted to add configuration revisions must set the malicious banner and enable maintenance mode; subsequent page views trigger the script.

CVSS severity7.1
High
EPSS probability0.36%
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 NetBox Community Edition 4.1.7 through 4.2.1 allows remote authenticated users to execute JavaScript in users' browsers. The warning alert template renders the user-controlled maintenance-banner message as HTML without sanitizing it, causing the payload to run on pages displaying the warning. An account permitted to add configuration revisions must set the malicious banner and enable maintenance mode; subsequent page views trigger the script.

The record

CVE
CVE-2024-56917
Published
Jun 24, 2025
Updated
Jun 24, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 24, 2025CVE publishedPublication date reported by the CVE source.
  2. Jun 24, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1190Exploit Public-Facing Application

Public exploit references

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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