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CVE-2024-50355— LibreNMS has a Persistent XSS from Insecure Input Sanitization Affects Multiple Endpoints

Quick assessment

Affected
librenms librenms
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

LibreNMS是LibreNMS社区的一套基于PHP和MySQL的开源网络监控系统。该系统具有自定义警报、自动发现网络环境和自动更新等特点。 LibreNMS存在安全漏洞，该漏洞源于具有管理员角色的用户可以编辑设备的显示名称，应用程序未正确清理设备显示名称中的用户输入，如果设备显示名称的名称中包含Java脚本代码，则可能会从不同来源触发该代码。

CVSS 4.8 · Medium EPSS 0.32% · P23

Possible ATT&CK Techniques 1 AI

T1059.007 · JavaScript
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I. Basic Information for CVE-2024-50355

Vulnerability Information
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Vulnerability Title
LibreNMS has a Persistent XSS from Insecure Input Sanitization Affects Multiple Endpoints
Source: CVE Program / CVE List V5
Vulnerability Description
LibreNMS is an open-source, PHP/MySQL/SNMP-based network monitoring system. User with Admin role can edit the Display Name of a device, the application did not properly sanitize the user input in the device Display Name, if java script code is inside the name of the device Display Name, its can be trigger from different sources. This vulnerability is fixed in 24.10.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
LibreNMS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
LibreNMS是LibreNMS社区的一套基于PHP和MySQL的开源网络监控系统。该系统具有自定义警报、自动发现网络环境和自动更新等特点。 LibreNMS存在安全漏洞，该漏洞源于具有管理员角色的用户可以编辑设备的显示名称，应用程序未正确清理设备显示名称中的用户输入，如果设备显示名称的名称中包含Java脚本代码，则可能会从不同来源触发该代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
librenms librenms < 24.10.0 -

II. Public POCs for CVE-2024-50355

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III. Intelligence Information for CVE-2024-50355

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Patches & Fixes for CVE-2024-50355 (1)

Vendor Advisories for CVE-2024-50355 (1)

Same Patch Batch · librenms · 2024-11-15 · 13 CVEs total

CVE-2024-49754 7.5 HIGH LibreNMS has a stored XSS ('Cross-site Scripting') in librenms/includes/html/pages/api-acc
CVE-2024-51495 4.8 MEDIUM LibreNMS has a Stored XSS ('Cross-site Scripting') in librenms/includes/html/dev-overview-
CVE-2024-51496 4.8 MEDIUM LibreNMS has a Reflected XSS ('Cross-site Scripting') in librenms/includes/html/pages/wire
CVE-2024-51497 4.8 MEDIUM LibreNMS has a Stored XSS ('Cross-site Scripting') in librenms/includes/html/print-customo
CVE-2024-51494 4.8 MEDIUM LibreNMS has a Stored XSS ('Cross-site Scripting') in librenms/app/Http/Controllers/Table/
CVE-2024-49764 4.8 MEDIUM LibreNMS has a Stored XSS ('Cross-site Scripting') in librenms/includes/html/pages/device/
CVE-2024-49759 4.8 MEDIUM LibreNMS has a Stored XSS ('Cross-site Scripting') in librenms/includes/html/pages/edituse
CVE-2024-49758 4.8 MEDIUM LibreNMS has a stored XSS in ExamplePlugin with Device's Notes
CVE-2024-50352 4.8 MEDIUM LibreNMS has a Stored XSS ('Cross-site Scripting') in librenms/includes/html/pages/device/
CVE-2024-50351 4.8 MEDIUM LibreNMS has a Reflected XSS ('Cross-site Scripting') in librenms/includes/functions.php
CVE-2024-50350 4.8 MEDIUM LibreNMS has a Stored XSS ('Cross-site Scripting') in librenms/app/Http/Controllers/Table/
CVE-2024-52526 4.8 MEDIUM LibreNMS has a Stored XSS ('Cross-site Scripting') in librenms/includes/html/pages/device/

IV. Related Vulnerabilities

Same product: librenms
Same vendor: librenms
Same weakness: CWE-79

V. Comments for CVE-2024-50355

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