5.1
MEDIUM CVSS 4.0
CVE-2021-47692
Nagios XI < 5.8.4 Core Config Manager (CCM) XSS via Lock Page Functionality
Description

Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority. It has been identified as a duplicate of  https://www.cve.org/CVERecord?id=CVE-2021-33179 .

INFO

Published Date :

Oct. 30, 2025, 10:15 p.m.

Last Modified :

Oct. 31, 2025, 2:16 p.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2021-47692 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Nagios xi
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 4.0 MEDIUM 83251b91-4cc7-4094-a5c7-464a1b83ea10
CVSS 4.0 MEDIUM [email protected]
Solution
Update Nagios XI to patch the XSS vulnerability in the lock page functionality.
  • Update Nagios XI to version 5.8.4 or later.
  • Apply the CCM 3.1.2 patch if applicable.
  • Ensure input validation is properly implemented.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-47692 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-47692 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Rejected by [email protected]

    Oct. 31, 2025

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Oct. 31, 2025

    Action Type Old Value New Value
    Changed Description The Core Config Manager (CCM) in Nagios XI versions prior to CCM 3.1.2 / Nagios XI 5.8.4 contains a cross-site scripting (XSS) vulnerability via the lock page functionality. 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. Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority. It has been identified as a duplicate of  https://www.cve.org/CVERecord?id=CVE-2021-33179 .
    Removed CVSS V4.0 VulnCheck: AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Removed CWE VulnCheck: CWE-79
    Removed Reference VulnCheck: https://www.nagios.com/changelog/nagios-xi/
    Removed Reference VulnCheck: https://www.vulncheck.com/advisories/nagios-xi-ccm-xss-via-lock-page-functionality
  • New CVE Received by [email protected]

    Oct. 30, 2025

    Action Type Old Value New Value
    Added Description The Core Config Manager (CCM) in Nagios XI versions prior to CCM 3.1.2 / Nagios XI 5.8.4 contains a cross-site scripting (XSS) vulnerability via the lock page functionality. 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.
    Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CWE CWE-79
    Added Reference https://www.nagios.com/changelog/nagios-xi/
    Added Reference https://www.vulncheck.com/advisories/nagios-xi-ccm-xss-via-lock-page-functionality
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 5.1
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability