CVE-2026-33276

CVE-2026-33276: Stored XSS in Checkmk 2.5.0 (beta) before 2.5.0b2 allows authenticated users who can create hosts or services to inject/execute JavaScript in other users’ browsers during Unified Search. Affected component is the Unified Search feature; vulnerability arises from unescaped host/ser...

CVE-2026-33276 XSS in Unified Search via Unescaped Host/Service Names

Stored cross-site scripting XSS in Checkmk 2.5.0 beta before 2.5.0b2 allows authenticated users with permission to create hosts or services to execute arbitrary JavaScript in the browsers of other users performing searches in the Unified Search feature...

PT-2026-29255

Name of the Vulnerable Software and Affected Versions Checkmk versions 2.5.0 through 2.5.0b1 Description A stored cross-site scripting issue exists in Checkmk. An authenticated user with the ability to create hosts or services can inject malicious JavaScript code. This code will then execute in t...

Checkmk 安全漏洞

Checkmk is an IT monitoring platform developed by Checkmk Corporation. Versions of Checkmk prior to 2.5.0b2 contained security vulnerabilities. These vulnerabilities were due to a storage-side cross-site scripting issue, which could allow authenticated users to execute arbitrary JavaScript when...

Checkmk 安全漏洞

Checkmk is an IT monitoring platform developed by Checkmk Corporation. Versions of Checkmk prior to 2.5.0b2 contained security vulnerabilities. These vulnerabilities were caused by stored cross-site scripting, which could allow authenticated users to inject malicious JavaScript into the Pending...

CVE-2026-33276: Improper Neutralization of Input During Web Page Generation

Stored cross-site scripting XSS in Checkmk 2.5.0 beta before 2.5.0b2 allows authenticated users with permission to create hosts or services to execute arbitrary JavaScript in the browsers of other users performing searches in the Unified Search feature...

CVE-2026-20915: Improper Neutralization of Input During Web Page Generation

Stored cross-site scripting XSS in Checkmk version 2.5.0 beta before 2.5.0b2 allows authenticated users with permission to create pending changes to inject malicious JavaScript into the Pending Changes sidebar, which will execute in the browsers of other users viewing the sidebar...

PT-2026-29251

Name of the Vulnerable Software and Affected Versions Checkmk versions prior to 2.5.0b2 Description A stored cross-site scripting issue exists in Checkmk. Authenticated users with permission to create pending changes can inject malicious JavaScript into the Pending Changes sidebar. This injected...

Linux Distros Unpatched Vulnerability : CVE-2025-64998

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Exposure of session signing secret in Checkmk 2.4.0p23, 2.3.0p45 and 2.2.0 allows an administrator of a remote site with config sync enabled to hijack sessions ...

CVE-2026-24097

Improper permission enforcement in Checkmk versions 2.4.0 before 2.4.0p23, 2.3.0 before 2.3.0p43, and 2.2.0 EOL allows authenticated users to enumerate existing hosts by observing different HTTP response codes in agent-receiver/registerexisting endpoint, which could lead to information disclosure...

CVE-2026-2859

Improper permission enforcement in Checkmk versions 2.4.0 before 2.4.0p23, 2.3.0 before 2.3.0p43, and 2.2.0 EOL allows unauthenticated users to enumerate existing hosts by observing different HTTP response codes in deployagent endpoint, which could lead to information disclosure...

CVE-2025-64998

Exposure of session signing secret in Checkmk 2.4.0p23, 2.3.0p45 and 2.2.0 allows an administrator of a remote site with config sync enabled to hijack sessions on the central site by forging session cookies...

EUVD-2025-208958

Exposure of session signing secret in Checkmk 2.4.0p23, 2.3.0p45 and 2.2.0 allows an administrator of a remote site with config sync enabled to hijack sessions on the central site by forging session cookies...

CVE-2025-64998

Exposure of session signing secret in Checkmk 2.4.0p23, 2.3.0p45 and 2.2.0 allows an administrator of a remote site with config sync enabled to hijack sessions on the central site by forging session cookies...

CVE-2025-64998

Exposure of session signing secret in Checkmk 2.4.0p23, 2.3.0p45 and 2.2.0 allows an administrator of a remote site with config sync enabled to hijack sessions on the central site by forging session cookies...

UBUNTU-CVE-2025-64998

Exposure of session signing secret in Checkmk 2.4.0p23, 2.3.0p45 and 2.2.0 allows an administrator of a remote site with config sync enabled to hijack sessions on the central site by forging session cookies...

CVE-2025-64998 Session hijacking via exposed session signing secret in distributed Checkmk setups

Exposure of session signing secret in Checkmk 2.4.0p23, 2.3.0p45 and 2.2.0 allows an administrator of a remote site with config sync enabled to hijack sessions on the central site by forging session cookies...

CVE-2025-64998 Session hijacking via exposed session signing secret in distributed Checkmk setups

Exposure of session signing secret in Checkmk 2.4.0p23, 2.3.0p45 and 2.2.0 allows an administrator of a remote site with config sync enabled to hijack sessions on the central site by forging session cookies...

CVE-2025-64998 Session hijacking via exposed session signing secret in distributed Checkmk setups

Exposure of session signing secret in Checkmk 2.4.0p23, 2.3.0p45 and 2.2.0 allows an administrator of a remote site with config sync enabled to hijack sessions on the central site by forging session cookies...

CVE-2025-64998

CVE-2025-64998 affects Checkmk versions prior to 2.4.0p23, 2.3.0p45, and 2.2.0. The issue is the exposure of the session signing secret in distributed Checkmk deployments with config sync enabled, enabling an administrator on a remote site to forge session cookies and hijack sessions on the centr...