CVE-2025-4123
Grafana Cross-Site-Scripting (XSS) via custom loaded frontend plugin in github.com/grafana/grafana
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.
How to fix CVE-2025-4123
To remediate CVE-2025-4123, upgrade the affected package to a fixed version below.
- —upgrade to 10.4.18 or later
- —upgrade to 0.0.0-20250521183405-c7a690348df7 or later
- —no fix listed
Is CVE-2025-4123 being exploited?
Moderate — EPSS is 6.9%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (3)
- from 0, < 10.4.18, >= 11.0.0, < 11.6.1, >= 12.0.0, < 12.0.0
- from 0, < 0.0.0-20250521183405-c7a690348df7
- from 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:L |