CVE-2024-47528Public exploitNetwork attack vector

Stored XSS via unsanitized SVG backgrounds

Published Oct 1, 2024 · Updated Dec 19, 2024

Stored XSS in LibreNMS before 24.9.0 allows remote authenticated users to execute JavaScript through a custom-map SVG background. CustomMapBackgroundController::updateBackgroundImage stores uploaded SVG bytes without sanitizing active content before serving the image. An administrator must upload the SVG, and execution affects administrators or Global Read users who directly visit its background URL; normal users cannot read it.

CVSS severity4.6
Medium
EPSS probability0.41%
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 LibreNMS before 24.9.0 allows remote authenticated users to execute JavaScript through a custom-map SVG background. CustomMapBackgroundController::updateBackgroundImage stores uploaded SVG bytes without sanitizing active content before serving the image. An administrator must upload the SVG, and execution affects administrators or Global Read users who directly visit its background URL; normal users cannot read it.

The record

CVE
CVE-2024-47528
Published
Oct 1, 2024
Updated
Dec 19, 2024
Vendor
LibreNMS
Product
LibreNMS
Classifications
CWE-79, CWE-116, CWE-434, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Oct 1, 2024CVE publishedPublication date reported by the CVE source.
  2. Dec 19, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <24.9.0
  2. Affected versionversion=< 24.9.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

LibreNMS · LibreNMSversion=0 <24.9.0; version=< 24.9.0

Published CVSS scores

4.6GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
4.8NISTCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-116Improper Encoding or Escaping of Output
CWE-434Unrestricted Upload of File with Dangerous Type
T1059.007JavaScript/JScript

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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