CVE-2026-22033
MEDIUM
GHSA-2mq9-hm29-8qch
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Lifecycle Timeline
4Tags
Description
Label Studio is a multi-type data labeling and annotation tool. In 1.22.0 and earlier, a persistent stored cross-site scripting (XSS) vulnerability exists in the custom_hotkeys functionality of the application. An authenticated attacker (or one who can trick a user/administrator into updating their custom_hotkeys) can inject JavaScript code that executes in other users’ browsers when those users load any page using the templates/base.html template. Because the application exposes an API token endpoint (/api/current-user/token) to the browser and lacks robust CSRF protection on some API endpoints, the injected script may fetch the victim’s API token or call token reset endpoints - enabling full account takeover and unauthorized API access.
Analysis
Stored XSS in Label Studio's custom_hotkeys feature allows authenticated attackers to inject malicious JavaScript that executes in other users' browsers, potentially enabling API token theft and account takeover due to insufficient CSRF protections. Public exploit code exists for this vulnerability affecting Label Studio 1.22.0 and earlier. …
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Remediation
Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.
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External POC / Exploit Code
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