CVE-2020-36858— Nagios Log Server < 2.1.6 XSS via Create User, Edit User, & Manage Host Lists Pages
Quick assessment
Affected
Nagios Log Server
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.
Nagios Log Server是美国Nagios公司的一套集中式日志管理、监控和分析软件。 Nagios Log Server 2.1.6之前版本存在安全漏洞，该漏洞源于web界面中创建用户、编辑用户和管理主机列表页面未充分验证或转义用户输入，可能导致跨站脚本攻击。
Possible ATT&CK Techniques 3 AI
T1059 · Command and Scripting Interpreter T1071 · Application Layer Protocol T1189 · Drive-by Compromise
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I. Basic Information for CVE-2020-36858
Vulnerability Information
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Vulnerability Title
Nagios Log Server < 2.1.6 XSS via Create User, Edit User, & Manage Host Lists Pages
Source: CVE Program / CVE List V5
Vulnerability Description
Nagios Log Server versions prior to 2.1.6 contain cross-site scripting (XSS) vulnerabilities via the web interface on the Create User, Edit User, and Manage Host Lists pages. Insufficient validation or escaping of user-supplied input may allow an attacker to inject and execute arbitrary script in the context of a victim's browser.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA: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
Nagios Log Server 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Nagios Log Server是美国Nagios公司的一套集中式日志管理、监控和分析软件。 Nagios Log Server 2.1.6之前版本存在安全漏洞，该漏洞源于web界面中创建用户、编辑用户和管理主机列表页面未充分验证或转义用户输入，可能导致跨站脚本攻击。
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 |
|---|---|---|---|---|
| Nagios | Log Server | 0 ~ 2.1.6 | - |
|
II. Public POCs for CVE-2020-36858
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Nagios · 2025-10-30 · 94 CVEs total
| CVE-2025-34134 | 9.4 CRITICAL | Nagios XI < 2024R1.4.2 RCE via Business Process Intelligence (BPI) |
| CVE-2025-34284 | 9.4 CRITICAL | Nagios XI < 2024R2 Authenticated Command Injection via WinRM Plugin |
| CVE-2024-14008 | 9.4 CRITICAL | Nagios XI < 2024R1.3.2 RCE via WinRM Configuration Wizard |
| CVE-2024-14005 | 9.4 CRITICAL | Nagios XI < 2024R1.2 Command Injection via Docker Wizard |
| CVE-2024-14003 | 9.4 CRITICAL | Nagios XI < 2024R1.2 RCE via NRDP Server Plugins |
| CVE-2024-14009 | 9.4 CRITICAL | Nagios XI < 2024R1.0.1 Privilege Escalation via System Profile |
| CVE-2024-13996 | 9.2 CRITICAL | Nagios XI < 2024R1.1.3 Session Not Invalidated After Password Change |
| CVE-2024-14006 | 8.8 HIGH | Nagios XI < 2024R1.2.2 Host Header Injection |
| CVE-2024-14004 | 8.7 HIGH | Nagios XI < 2024R1.2 Privilege Escalation via NagVis Configuration (nagvis.conf) |
| CVE-2024-13999 | 7.3 HIGH | Nagios XI < 2024R1.1.3 AD/LDAP Token Authenticated Information Disclosure |
| CVE-2025-34283 | 7.1 HIGH | Nagios XI < 2024R1.4.2 API Key Disclosure via Neptune Themes |
| CVE-2024-14002 | 7.1 HIGH | Nagios XI < 2024R1.1.4 Authenticated Local File Inclusion via NagVis |
| CVE-2025-34135 | 5.1 MEDIUM | Nagios XI < 2024R1.4.2 Overly Permissive Permissions on Systemd Unit Files |
| CVE-2024-14001 | 5.1 MEDIUM | Nagios XI < 2024R1.1.3 XSS via Executive Summary Report |
| CVE-2024-14000 | 5.1 MEDIUM | Nagios XI < 2024R1.1.3 XSS via Capacity Planning Report |
| CVE-2020-36862 | Nagios XI < 5.6.11 Unauthenticated XSS and SSRF via Highcharts | |
| CVE-2020-36857 | Nagios XI < 5.6.14 Authenticated SQL Injection via SNMP Trap Interface Page | |
| CVE-2021-47690 | Nagios XI < 5.8.2 Core Config Manager (CCM) XSS via Overlay Modals | |
| CVE-2020-36859 | Nagios XI < 5.7.4 Core Config Manager (CCM) SQL Injection via Object Edit Pages | |
| CVE-2021-47700 | Nagios XI < 5.8.7 Insecure Permissions on Highcharts Temporary Directory |
Showing top 20 of 94 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Log Server
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CVE-2025-34323
Nagios Log Server < 2026R1.0.1 Local Privilege Escalation vi -
CVE-2025-34322
Nagios Log Server < 2026R1.0.1 Authenticated Command Injecti -
CVE-2023-7321
Nagios Log Server < 2.1.14 XSS via Snapshots Page -
CVE-2023-7323
Nagios Log Server < 2024R1 XSS via Create User Function -
CVE-2025-34298
Nagios Log Server < 2024R1.3.2 Set Email Privilege Escalatio
Same vendor: Nagios
Same weakness: CWE-79
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AI Engine <= 3.8.0 - Unauthenticated Stored Cross-Site Scrip -
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QloApps through 1.7.0 Reflected XSS via Length of Stay Field
V. Comments for CVE-2020-36858
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