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Librenms CVE-2024-47526

LOW
Cross-site Scripting (XSS) (CWE-79)
2024-10-01 security-advisories@github.com
2.4
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Output encoding, context-aware escaping
MITRE ATT&CK

2 techniques across 2 tactics: Initial Access, Execution

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 2.4 (LOW). Attack characteristics: network attack vector, low complexity, high privileges required, user interaction required. Public proof-of-concept exploit code is available.

Exploit ScenarioDerived

A remote attacker could inject malicious scripts into web pages viewed by other users by sending crafted requests to the affected application.

Monitor Track and reassess. Why: LOW severity (CVSS 0.1-3.9).
Patch available 0.5% exploitation probability (EPSS)

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AnalysisAI

LibreNMS is an open-source, PHP/MySQL/SNMP-based network monitoring system. Rated low severity (CVSS 2.4), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.

Affected Packages

composer librenms/librenms fix: 24.9.0

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in composer

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. LibreNMS is an open-source, PHP/MySQL/SNMP-based network monitoring system. A Self Cross-Site Scripting (Self-XSS) vulnerability in the "Alert Templates" feature allows users to inject arbitrary JavaScript into the alert template's name. This script executes immediately upon submission but does not persist after a page refresh. Affected products include: Librenms.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 2.4 LOW
AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

DescriptionNVD

LibreNMS is an open-source, PHP/MySQL/SNMP-based network monitoring system. A Self Cross-Site Scripting (Self-XSS) vulnerability in the "Alert Templates" feature allows users to inject arbitrary JavaScript into the alert template's name. This script executes immediately upon submission but does not persist after a page refresh.

Threat Intelligence Overview

EPSS Score
0.5%
Top 64% exploitable
Exploit
POC
Public exploit code exists
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity LOW
CISA KEV No
Public POC Yes
EPSS 0.5%
Patch available Yes
Active threat No
Deciding rule
LOW severity (CVSS 0.1-3.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
Poc
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Low

Priority Score

32
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +12
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.

Affected Products (CPE)NVD

cpe:2.3:a:librenms:librenms:*:*:*:*:*:*:*:*
CVE-2019-10669 HIGH POC
7.2 Sep 09

An issue was discovered in LibreNMS through 1.47. Rated high severity (CVSS 7.2), this vulnerability is remotely exploit

CVE-2021-44278 CRITICAL POC
9.8 Dec 03

Librenms 21.11.0 is affected by a path manipulation vulnerability in includes/html/pages/device/showconfig.inc.php. Rate

CVE-2019-10665 CRITICAL POC
9.8 Sep 09

An issue was discovered in LibreNMS through 1.47. Rated critical severity (CVSS 9.8), this vulnerability is remotely exp

CVE-2026-86426 CRITICAL POC
9.2 Sep 07

Authentication bypass in the LibreNMS REST API (all versions before 26.8.0) lets unauthenticated remote attackers reach

CVE-2026-26988 CRITICAL POC
9.1 Feb 20

SQL injection in LibreNMS 25.12.0 and below. PoC and patch available.

CVE-2019-10668 CRITICAL POC
9.1 Sep 09

An issue was discovered in LibreNMS through 1.47. Rated critical severity (CVSS 9.1), this vulnerability is remotely exp

CVE-2026-26990 HIGH POC
8.8 Feb 20

SQL injection in LibreNMS versions 25.12.0 and below allows authenticated users to extract sensitive database informatio

CVE-2024-32461 HIGH POC
8.8 Apr 22

LibreNMS is an open-source, PHP/MySQL/SNMP-based network monitoring system. Rated high severity (CVSS 8.8), this vulnera

CVE-2020-15877 HIGH POC
8.8 Jul 21

An issue was discovered in LibreNMS before 1.65.1. Rated high severity (CVSS 8.8), this vulnerability is remotely exploi

CVE-2019-12463 HIGH POC
8.8 Sep 09

An issue was discovered in LibreNMS 1.50.1. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable,

CVE-2019-10671 HIGH POC
8.8 Sep 09

An issue was discovered in LibreNMS through 1.47. Rated high severity (CVSS 8.8), this vulnerability is remotely exploit

CVE-2026-80214 HIGH POC
8.6 Aug 26

Command injection in LibreNMS's Virtualization Discovery module enables authenticated administrator-level users to execu

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