CVE-2023-22462 Stored XSS in Grafana Text plugin

Medium 6.4 Published Updated

An attacker with Editor role can inject malicious scripts into Text panels, potentially escalating privileges to Admin if an Admin views the dashboard.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2023-22462?

CVE-2023-22462 is a medium-severity cross-site scripting vulnerability in Grafana Grafana, published on 2 Mar 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

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.

Weakness: CWE-79

Which versions are affected by CVE-2023-22462?

5 open source packages ship an affected version, including github.com/grafana/grafana and grafana. It affects 1 product.

PackageAffectedFixed in
github.com/grafana/grafana GoFrom 9.2.09.2.10
github.com/grafana/grafana GoFrom 9.2.09.2.10
github.com/grafana/grafana GoFrom 9.3.09.3.4
github.com/grafana/grafana GoFrom 9.3.09.3.4
grafana BitnamiFrom 9.2.09.2.10, 9.3.4

Products include Grafana Grafana.

How do I fix CVE-2023-22462?

Upgrade github.com/grafana/grafana to a fixed version for your release line: 9.2.10 or 9.3.4.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2023-22462 being exploited?

There is no known exploitation of CVE-2023-22462 in the wild and no public exploit code.

All Grafana Grafana vulnerabilities

Sources

Also known as BIT-grafana-2023-22462, GHSA-7rqg-hjwc-6mjf, UBUNTU-CVE-2023-22462.

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