Is CVE-2025-27404 actively exploited?

No active exploitation of CVE-2025-27404 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2025-27404 be exploited remotely?

Yes. CVE-2025-27404 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2025-27404?

CVE-2025-27404 has a CVSS score of 6.1 (MEDIUM).

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MEDIUM

CVE-2025-27404

CWE-79Published: March 26, 2025· Updated: Jun 17, 2026

6.1

CVSS v3.1

Official Description

Icinga Web 2 is an open source monitoring web interface, framework and command-line interface. A vulnerability in versions prior to 2.11.5 and 2.12.13 allows an attacker to craft a URL that, once visited by any user, allows to embed arbitrary Javascript into Icinga Web and to act on behalf of that user. This issue has been resolved in versions 2.11.5 and 2.12.3 of Icinga Web 2. As a workaround, those who have Icinga Web 2.12.2 may enable a content security policy in the application settings.

NVD Source

Technical Analysis

CVE-2025-27404 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.

From a weakness classification perspective (CWE-79): Cross-site scripting (XSS) vulnerabilities allow attackers to inject malicious scripts into web pages viewed by other users.