CVE-2023-1387

Name: CVE-2023-1387
Creator: NVD / NIST
Published: 2023-04-26T14:15:09.43+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.50%

Last modified Jun 17, 2026

CVE-2023-1387 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Grafana is an open-source platform for monitoring and observability. Starting with the 9.1 branch, Grafana introduced the ability to search for a JWT in the URL query parameter auth_token and use it as the authentication token. EPSS estimates a 1.50% chance of exploitation in the next 30 days.

Description

Grafana is an open-source platform for monitoring and observability. Starting with the 9.1 branch, Grafana introduced the ability to search for a JWT in the URL query parameter auth_token and use it as the authentication token. By enabling the "url_login" configuration option (disabled by default), a JWT might be sent to data sources. If an attacker has access to the data source, the leaked token could be used to authenticate to Grafana.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

1.50%

71.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-200

Affected Software

Vendor	Product	Versions
Grafana	Grafana	>= 9.1.0, < 9.2.17
Grafana	Grafana	>= 9.3.0, < 9.3.13
Grafana	Grafana	>= 9.4.0, < 9.4.9

References

https://github.com/grafana/bugbounty/security/advisories/GHSA-5585-m9r5-p86jExploit, Vendor Advisory
https://grafana.com/security/security-advisories/cve-2023-1387/Vendor Advisory
https://security.netapp.com/advisory/ntap-20230609-0003/
https://github.com/grafana/bugbounty/security/advisories/GHSA-5585-m9r5-p86jExploit, Vendor Advisory
https://grafana.com/security/security-advisories/cve-2023-1387/Vendor Advisory
https://security.netapp.com/advisory/ntap-20230609-0003/

Timeline

Published: Apr 26, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-1387?

How severe is CVE-2023-1387?

CVE-2023-1387 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.50% probability of exploitation in the next 30 days.

How do I fix CVE-2023-1387?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-1387?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST