CVE-2025-4123
Grafana Cross-Site-Scripting (XSS) via custom loaded frontend plugin
Public exploit code
Working exploit or proof of concept code has been published for this vulnerability. Treat unpatched systems as at risk.
- Grafana 11.6.0 - SSRF2026-04-06 · webapps · multiple
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | github.com/grafana/grafana | < 0.0.0-20250521183405-c7a690348df7 | 0.0.0-20250521183405-c7a690348df7 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Grafana | Grafana | before 10.4.18 from 11.2.0 before 11.2.9 from 11.3.0 before 11.3.6 from 11.4.0 before 11.4.4 from 11.5.0 before 11.5.4 from 11.6.0 before 11.6.1 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- 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://www.exploit-db.com/exploits/52491
- https://github.com/advisories/GHSA-q53q-gxq9-mgrj
- https://nvd.nist.gov/vuln/detail/CVE-2025-4123
- https://grafana.com/security/security-advisories/cve-2025-4123
- https://github.com/grafana/grafana/commit/c7a690348df761d41b659224cbc50a46a0c0e4cc
- https://pkg.go.dev/vuln/GO-2025-3702
- https://grafana.com/blog/2025/05/23/grafana-security-release-medium-and-high-severity-security-fixes-for-cve-2025-4123-and-cve-2025-3580