The vulnerability allows an attacker to inject malicious Javascript into a victim's browser to run it in the context of Icinga Web. The victim needs to visit a specifically prepared website and may have no immediate chance to notice any wrongdoing.
Version 0.13.1 includes a fix for this. It will be published as part of icinga-php-library version 0.19.2.
Enable the Content-Security-Policy (CSP) in the general configuration of Icinga Web available since version 2.12.0.
None
{
"cwe_ids": [
"CWE-79"
],
"github_reviewed": true,
"github_reviewed_at": "2026-04-29T21:01:55Z",
"nvd_published_at": "2026-05-08T23:16:35Z",
"severity": "HIGH"
}