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CVE-2025-4123

7.6 · HIGH

A cross-site scripting (XSS) vulnerability exists in Grafana caused by combining a client path traversal and open redirect.

Published May 22, 2025CWE-79EPSS 97.01%

Overview

CVE-2025-4123 is a high-severity vulnerability. It was published on May 22, 2025 and has a CVSS 3.1 base score of 7.6 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.6, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

A cross-site scripting (XSS) vulnerability exists in Grafana caused by combining a client path traversal and open redirect. This allows attackers to redirect users to a website that hosts a frontend plugin that will execute arbitrary JavaScript. This vulnerability does not require editor permissions and if anonymous access is enabled, the XSS will work. If the Grafana Image Renderer plugin is installed, it is possible to exploit the open redirect to achieve a full read SSRF.

The default Content-Security-Policy (CSP) in Grafana will block the XSS though the `connect-src` directive.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgrafana.com/blog/2025/05/23/grafana-security-release-medium-and-high-severity-security-fixes-for-cve-2025-4123-and-cve-2025-3580/Refgrafana.com/security/security-advisories/cve-2025-4123/Refwww.exploit-db.com/exploits/52491

How CyberStrike helps

Frequently asked questions

What is CVE-2025-4123?

CVE-2025-4123 is a high-severity vulnerability. It was published on May 22, 2025 and has a CVSS 3.1 base score of 7.6 (HIGH).

How severe is CVE-2025-4123?

This vulnerability has a CVSS 3.1 base score of 7.6, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2025-4123?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2025-4123?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-4123 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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