Vulnerability · Published Oct 30, 2025 · Assigned by VulnCheck

CVE-2023-53688Nagios XI < 5.11.3 XSS & CSRF via Hypermap Replay

Medium 5.1

In plain English

A medium-severity cross-site scripting in XI from Nagios. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 25% of all known vulnerabilities).

Severity (CVSS 4.0)5.1Medium

Exploit odds (30 days)0.3%top 75.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Nagios XI versions prior to 5.11.3 are vulnerable to cross-site scripting (XSS) and cross-site request forgery (CSRF) via the Hypermap Replay component. An attacker can submit crafted input that is not properly validated or escaped, allowing injection of malicious script that executes in the context of a victim's browser (XSS). Additionally, the component does not enforce sufficient anti-CSRF protections on state-changing operations, enabling an attacker to induce authenticated users to perform unwanted actions.

Affected products (as reported)

Vendor	Product	Versions
Nagios	XI	0 – before 5.11.3

Weakness: CWE-79, CWE-352 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

References

https://www.nagios.com/products/security/#nagios-xi vendor-advisory, patch
https://www.nagios.com/changelog/nagios-xi/ release-notes, patch
https://www.vulncheck.com/advisories/nagios-xi-xss-and-csrf-via-hypermap-relay third-party-advisory