CVE-2023-22462: Stored XSS in Grafana Text plugin
Description On 2023-01-01 during an internal audit of Grafana, a member of the security team found a stored XSS vulnerability affecting the core plugin "Text".
The stored XSS vulnerability requires several user interactions in order to be fully exploited. The vulnerability was possible due to React's render cycle that will pass though the unsanitized HTML code, but in the next cycle the HTML is cleaned up and saved in Grafana's database.
Impact An attacker needs to have the Editor role in order to change a Text panel to include JavaScript. later, an another user needs to edit the same Text panel, and click on "Markdown" or "HTML" for the code to be executed. This means that vertical privilege escalation is possible, where a user with Editor role can change to a known password for a user having Admin role if the user with Admin role executes malicious JavaScript viewing a dashboard.
Impacted versions Grafana versions between 9.2.0 and 9.2.10. and between 9.3.0 and 9.3.4
Solutions and mitigations Update your Grafana instance.
Reporting security issues
If you think you have found a security vulnerability, please send a report to security@grafana.com. This address can be used for all of Grafana Labs' open source and commercial products (including, but not limited to Grafana, Grafana Cloud, Grafana Enterprise, and grafana.com). We can accept only vulnerability reports at this address. We would prefer that you encrypt your message to us by using our PGP key. The key fingerprint is
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Other sources
Grafana is an open-source platform for monitoring and observability. On 2023-01-01 during an internal audit of Grafana, a member of the security team found a stored XSS vulnerability affecting the core plugin "Text". The stored XSS vulnerability requires several user interactions in order to be fully exploited. The vulnerability was possible due to React's render cycle that will pass though the unsanitized HTML code, but in the next cycle the HTML is cleaned up and saved in Grafana's database. An attacker needs to have the Editor role in order to change a Text panel to include JavaScript. Another user needs to edit the same Text panel, and click on "Markdown" or "HTML" for the code to be executed. This means that vertical privilege escalation is possible, where a user with Editor role can change to a known password for a user having Admin role if the user with Admin role executes malicious JavaScript viewing a dashboard. This issue has been patched in versions 9.2.10 and 9.3.4.
— MITRE
The stored XSS vulnerability requires several user interactions in order to be fully exploited. The vulnerability was possible due to React's render cycle that will pass through the unsanitized HTML code, but in the next cycle, the HTML is cleaned up and saved in Grafana's database. An attacker needs to have the Editor role in order to change a Text panel to include JavaScript. Later, another user needs to edit the same Text panel, and click on "Markdown" or "HTML" for the code to be executed. This means that vertical privilege escalation is possible, where a user with an Editor role can change to a known password for a user having an Admin role if the user with an Admin role executes malicious JavaScript viewing a dashboard.
— Red Hat
Affected Software
Remediation
Event History
Frequently Asked Questions
What is CVE-2023-22462?
CVE-2023-22462 is a stored XSS vulnerability affecting the core plugin 'Text' in the Grafana open-source platform for monitoring and observability.
How severe is CVE-2023-22462?
CVE-2023-22462 has a severity rating of medium with a score of 5.4.
Which versions of Grafana are affected by CVE-2023-22462?
Grafana versions 9.2.0 to 9.2.10 and versions 9.3.0 to 9.3.4 are affected by CVE-2023-22462.
How can I fix CVE-2023-22462?
To fix CVE-2023-22462, it is recommended to update Grafana to the latest version that includes the security fixes.
Where can I find more information about CVE-2023-22462?
You can find more information about CVE-2023-22462 in the following references: [GitHub Commit](https://github.com/grafana/grafana/commit/db83d5f398caffe35c5846cfa7727d1a2a414165), [GitHub Security Advisory](https://github.com/grafana/grafana/security/advisories/GHSA-7rqg-hjwc-6mjf), [Grafana Blog](https://grafana.com/blog/2023/02/28/grafana-security-release-new-versions-with-security-fixes-for-cve-2023-0594-cve-2023-0507-and-cve-2023-22462/).