Log in / Sign up

Vulnerability details

CVE-2026-22033

HumanSignal label-studio

Label Studio vulnerable to full account takeover by chaining Stored XSS + IDOR in User Profile via custom_hotkeys field

CVSS 4.0
8.6High

Official 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.

CVSS scores

ScoreVersionSourceVector
8.6High 4.0 CVEProject cvelistV5 (CNA) (GitHub_M) CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Affected products

VendorProductVersionsSource
HumanSignal label-studio <= 1.22.0 CVEProject cvelistV5 (CNA)

References and advisories

3
Kolun on Telegram @kolunsec Exploited CVEs, key news and a daily digest Alerts for this product's next CVEsFollow the product to get new vulnerabilities on Telegram.

Details

Published
2026-01-12
Last updated
2026-01-12
State
Published
Assigner (CNA)
GitHub_M

Exploit prediction (EPSS)

0.27%
Probability of exploitation in 30 days
20.4%
Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable
No
Exploitation
Proof of concept
Technical impact
Partial

Weaknesses (CWE)

  • CWE-79
    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
  • CWE-284
    Improper Access Control