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SBA Security Advisory – Checkmk Cross Site Scripting (CVE-2025-39663)

October 30, 2025

Checkmk in versions before 2.4.0p14 and 2.3.0p39, as well as in branches 2.2.0, 2.1.0 and 2.0.0 is prone to a Stored Cross-Site Scripting (XSS) vulnerability when used in a distributed monitoring setup. Any connected remote site can inject JavaScript code in the central site's user interface. ... Read More

SBA Security Advisory – Checkmk Agent Privilege Escalation via Insecure Temporary Files (CVE-2025-32919)

October 13, 2025

Vulnerability Overview The `win_license` plugin as included in Checkmk agent for Windows versions before 2.4.0p13, 2.3.0p38 and 2.2.0p46, as well as since version 2.1.0b2 and 2.0.0p28 allows low privileged users to escalate privileges to Local System due to insecure use of a temporary folder. Recommended… Read More

SBA Security Advisory – Checkmk Path Traversal (CVE-2025-39664)

October 13, 2025

Vulnerability Overview Checkmk in versions before 2.4.0p13, 2.3.0p38 and 2.2.0p46, as well as since version 2.1.0b1 is prone to a path traversal vulnerability in the report scheduler. Due to an insufficient validation of a file name input, users can store reports in arbitrary locations on the server. Read More

SBA Security Advisory – Filebrowser Insecure Password Handling (CVE-2025-52997)

July 24, 2025

Vulnerability Overview All user accounts authenticate towards a Filebrowser instance with a password. A missing password policy and brute-force protection makes it impossible for administrators to properly secure the authentication process. Recommended Countermeasure We recommend to update to Filebrowser version 2.34.1 or later and configure… Read More

SBA Security Advisory – Filebrowser Password Protection of Links Bypassable (CVE-2025-52996)

July 24, 2025

Vulnerability Overview Files managed by Filebrowser can be shared with a link to external persons. While the application allows protecting those links with a password, the implementation is error-prone, making an incidental unprotected sharing of a file possible. Recommended Countermeasure We recommend to update to… Read More

SBA Security Advisory – Filebrowser Command Execution Allowlist Bypass (CVE-2025-52995)

July 24, 2025

Vulnerability Overview The Command Execution feature of Filebrowser only allows the execution of shell commands which have been predefined on a user-specific allowlist. The implementation of this allowlist is erroneous, allowing a user to execute additional commands not permitted. Recommended Countermeasure We recommend to update… Read More

SBA Security Advisory – Filebrowser Command Execution not Limited to Scope (CVE-2025-52904)

July 24, 2025

Vulnerability Overview In the web application, all users have a scope assigned, and they only have access to the files within that scope. The Command Execution feature of Filebrowser allows the execution of shell commands which are not restricted to the scope, potentially giving an attacker read and write access… Read More

SBA Security Advisory – Filebrowser Shell Commands Can Spawn Other Commands (CVE-2025-52903)

July 24, 2025

Vulnerability Overview The Command Execution feature of Filebrowser only allows the execution of shell command which have been predefined on a user-specific allowlist. Many tools allow the execution of arbitrary different commands, rendering this limitation void. Recommended Countermeasure We recommend to disable the… Read More

SBA Security Advisory – Filebrowser Stored Cross-Site Scripting (CVE-2025-52902)

July 24, 2025

Vulnerability Overview The Markdown preview function of Filebrowser v2.32.0 is vulnerable to Stored Cross-Site-Scripting (XSS). Any JavaScript code that is part of a Markdown file uploaded by a user will be executed by the browser. Recommended Countermeasure We recommend to update to Filebrowser version 2.33.7… Read More

SBA Security Advisory – Filebrowser Sensitive Data Transferred in URL (CVE-2025-52901)

July 24, 2025

Vulnerability Overview URLs that are accessed by a user are commonly logged in many locations, both server- and client-side. It is thus good practice to never transmit any secret information as part of a URL. Filebrowser violates this practice, since access tokens are used as GET parameters. Read More

SBA Research is a research center for Information Security
funded partly by the national initiative for COMET Competence Centers for Excellent Technologies.

Tag: Security Advisory

SBA Security Advisory – Checkmk Cross Site Scripting (CVE-2025-39663)

SBA Security Advisory – Checkmk Agent Privilege Escalation via Insecure Temporary Files (CVE-2025-32919)

SBA Security Advisory – Checkmk Path Traversal (CVE-2025-39664)

SBA Security Advisory – Filebrowser Insecure Password Handling (CVE-2025-52997)

SBA Security Advisory – Filebrowser Password Protection of Links Bypassable (CVE-2025-52996)

SBA Security Advisory – Filebrowser Command Execution Allowlist Bypass (CVE-2025-52995)

SBA Security Advisory – Filebrowser Command Execution not Limited to Scope (CVE-2025-52904)

SBA Security Advisory – Filebrowser Shell Commands Can Spawn Other Commands (CVE-2025-52903)

SBA Security Advisory – Filebrowser Stored Cross-Site Scripting (CVE-2025-52902)

SBA Security Advisory – Filebrowser Sensitive Data Transferred in URL (CVE-2025-52901)

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SBA Research is a research center for Information Security funded partly by the national initiative for COMET Competence Centers for Excellent Technologies.

Tag: Security Advisory

SBA Newsletter

Highlights of the past years:

SBA Research is a research center for Information Security
funded partly by the national initiative for COMET Competence Centers for Excellent Technologies.