CVE-2025-4123: Github.com/grafana/grafana Cross-Site Scripting Vulnerability

HIGH
Advisory Identifier: GHSA-q53q-gxq9-mgrj
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CVSS 7.6
CWE-79
Published
Advisory Summary

CVE-2025-4123 is a HIGH (CVSS 7.6) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Github.com/grafana/grafana libraries in the Go ecosystem. The issue involves grafana cross-site-scripting (xss) via custom loaded frontend plugin. Remediation is available by upgrading affected packages to version 0.0.0-20250521183405-c7a690348df7.

CVE-2025-4123 at a Glance

CVE Identifier CVE-2025-4123
GHSA Identifier GHSA-q53q-gxq9-mgrj
Severity HIGH
CVSS v3.1 Base Score 7.6
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Github.com/grafana/grafana
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 7.6

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:L).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction Required (UI:R)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity Low (I:L)
Availability Low (A:L)

How to Fix CVE-2025-4123

To remediate this vulnerability, upgrade all affected Github.com/grafana/grafana dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

github.com/grafana/grafana fixed: 0.0.0-20250521183405-c7a690348df7 
Upgrade github.com/grafana/grafana to 0.0.0-20250521183405-c7a690348df7
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for github.com/grafana/grafana

How to Check if You Are Affected

To determine whether your application is affected by CVE-2025-4123, inspect your project dependencies for Github.com/grafana/grafana:

inspect dependencies for github.com/grafana/grafana

Analyze the terminal output to locate any version of Github.com/grafana/grafana in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.0.0-20250521183405-c7a690348df7), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), where the product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. In Github.com/grafana/grafana, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

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.

CVE-2025-4123 Affected Github.com/grafana/grafana Versions

1 component(s)
Fixed Versions:
0.0.0-20250521183405-c7a690348df7
Product / Package Ecosystem Affected Versions Fixed Version
github.com/grafana/grafana
golang/github.com/grafana/grafana
Go
< 0.0.0-20250521183405-c7a690348df7
0.0.0-20250521183405-c7a690348df7

References

NVD — CVE-2025-4123 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-4123
Security Fix Commit FIX COMMIT
https://github.com/grafana/grafana/commit/c7a690348df761d41b659224cbc50a46a0c0e4cc
Github.com/grafana/grafana Source Repository REPOSITORY
https://github.com/grafana/grafana
Github.com/grafana/grafana Release RELEASE
https://grafana.com/blog/2025/05/23/grafana-security-release-medium-and-high-severity-security-fixes-for-cve-2025-4123-and-cve-2025-3580
Github.com/grafana/grafana Security Information SECURITY
https://grafana.com/security/security-advisories/cve-2025-4123
pkg.go.dev/vuln/go-2025-3702 WEB
https://pkg.go.dev/vuln/GO-2025-3702
www.exploit-db.com/exploits/52491 WEB
https://www.exploit-db.com/exploits/52491

Frequently Asked Questions

What is CVE-2025-4123?
CVE-2025-4123 is a security vulnerability in Github.com/grafana/grafana involving Grafana Cross-Site-Scripting (XSS) via custom loaded frontend plugin under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Github.com/grafana/grafana versions are affected?
Affected versions include releases prior to 0.0.0-20250521183405-c7a690348df7 across affected packages: github.com/grafana/grafana.
What version fixes CVE-2025-4123?
Upgrading to 0.0.0-20250521183405-c7a690348df7 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/grafana/grafana affected?
Yes, github.com/grafana/grafana is affected in releases prior to 0.0.0-20250521183405-c7a690348df7. Upgrade your dependency to 0.0.0-20250521183405-c7a690348df7 or later.
What is the CVSS score of CVE-2025-4123?
CVE-2025-4123 has a CVSS v3.1 base score of 7.6 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:L.
What CWE is associated with CVE-2025-4123?
CVE-2025-4123 is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.).
How can I check Go dependencies for CVE-2025-4123?
Run the dependency tree command: 'inspect dependencies for github.com/grafana/grafana'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-q53q-gxq9-mgrj",
  "modified" : "2026-05-06T18:37:38Z",
  "published" : "2025-05-22T09:33:21Z",
  "aliases" : [ "CVE-2025-4123" ],
  "summary" : "Grafana Cross-Site-Scripting (XSS) via custom loaded frontend plugin",
  "details" : "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.\n\nThe default Content-Security-Policy (CSP) in Grafana will block the XSS though the `connect-src` directive.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:L"
  } ],
  "affected" : [ {
    "package" : {
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      "name" : "github.com/grafana/grafana"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.0.0-20250521183405-c7a690348df7"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-4123"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/grafana/grafana/commit/c7a690348df761d41b659224cbc50a46a0c0e4cc"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/grafana/grafana"
  }, {
    "type" : "WEB",
    "url" : "https://grafana.com/blog/2025/05/23/grafana-security-release-medium-and-high-severity-security-fixes-for-cve-2025-4123-and-cve-2025-3580"
  }, {
    "type" : "WEB",
    "url" : "https://grafana.com/security/security-advisories/cve-2025-4123"
  }, {
    "type" : "WEB",
    "url" : "https://pkg.go.dev/vuln/GO-2025-3702"
  }, {
    "type" : "WEB",
    "url" : "https://www.exploit-db.com/exploits/52491"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-05-22T18:50:43Z",
    "nvd_published_at" : "2025-05-22T08:15:52Z"
  }
}