GHSA-q53q-gxq9-mgrj
Grafana Cross-Site-Scripting (XSS) via custom loaded frontend plugin
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Go | github.com/grafana/grafana | < 0.0.0-20250521183405-c7a690348df7 | 0.0.0-20250521183405-c7a690348df7 |
Details
As written in the advisory (Markdown source, shown as plain text).
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.
References
External links from the advisory. They lead to third-party sites.
- https://nvd.nist.gov/vuln/detail/CVE-2025-4123
- https://github.com/grafana/grafana/commit/c7a690348df761d41b659224cbc50a46a0c0e4cc
- https://github.com/grafana/grafana
- https://grafana.com/blog/2025/05/23/grafana-security-release-medium-and-high-severity-security-fixes-for-cve-2025-4123-and-cve-2025-3580
- https://grafana.com/security/security-advisories/cve-2025-4123
- https://pkg.go.dev/vuln/GO-2025-3702
- https://www.exploit-db.com/exploits/52491