CVE-2024-13993
Nagios XI < 2024R1.1.2 Reflected XSS via Login Page on Older Browsers
Description
Nagios XI versions prior to < 2024R1.1.2 are vulnerable to a reflected cross-site scripting (XSS) via the login page when accessed with older web browsers. Insufficient validation or escaping of user-supplied input reflected by the login page can allow an attacker to craft a malicious link that, when visited by a victim, executes arbitrary JavaScript in the victim’s browser within the Nagios XI origin. The issue is observable under legacy browser behaviors; modern browsers may mitigate some vectors.
INFO
Published Date :
Oct. 30, 2025, 10:15 p.m.
Last Modified :
Nov. 6, 2025, 4:18 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | MEDIUM | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Update Nagios XI to version 2024R1.1.2 or later.
- Disable use of older web browsers if possible.
- Avoid clicking suspicious login page links.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2024-13993.
| URL | Resource |
|---|---|
| https://www.nagios.com/changelog/nagios-xi/ | Release Notes |
| https://www.nagios.com/products/security/#nagios-xi | Vendor Advisory |
| https://www.vulncheck.com/advisories/nagios-xi-reflected-xss-via-login-page-on-older-browsers | Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-13993 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2024-13993
weaknesses.
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-2024-13993 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-13993 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.
-
Initial Analysis by [email protected]
Nov. 06, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Added CPE Configuration OR *cpe:2.3:a:nagios:nagios_xi:*:*:*:*:*:*:*:* versions up to (excluding) 2024 *cpe:2.3:a:nagios:nagios_xi:2024:r1:*:*:*:*:*:* *cpe:2.3:a:nagios:nagios_xi:2024:r1.0.1:*:*:*:*:*:* *cpe:2.3:a:nagios:nagios_xi:2024:r1.1:*:*:*:*:*:* *cpe:2.3:a:nagios:nagios_xi:2024:r1.1.1:*:*:*:*:*:* Added Reference Type VulnCheck: https://www.nagios.com/changelog/nagios-xi/ Types: Release Notes Added Reference Type VulnCheck: https://www.nagios.com/products/security/#nagios-xi Types: Vendor Advisory Added Reference Type VulnCheck: https://www.vulncheck.com/advisories/nagios-xi-reflected-xss-via-login-page-on-older-browsers Types: Third Party Advisory -
New CVE Received by [email protected]
Oct. 30, 2025
Action Type Old Value New Value Added Description Nagios XI versions prior to < 2024R1.1.2 are vulnerable to a reflected cross-site scripting (XSS) via the login page when accessed with older web browsers. Insufficient validation or escaping of user-supplied input reflected by the login page can allow an attacker to craft a malicious link that, when visited by a victim, executes arbitrary JavaScript in the victim’s browser within the Nagios XI origin. The issue is observable under legacy browser behaviors; modern browsers may mitigate some vectors. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:A/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.nagios.com/products/security/#nagios-xi Added Reference https://www.vulncheck.com/advisories/nagios-xi-reflected-xss-via-login-page-on-older-browsers