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GHSA-6xv9-957j-qfhg

MediumCVSS 4.7 / 10
Published Feb 22, 2024·Last modified Feb 4, 2026
Affected Components(0)

No affected components available

Description

Summary

On all Label Studio versions prior to 1.11.0, data imported via file upload feature is not properly sanitized prior to being rendered within a Choices or Labels tag, resulting in an XSS vulnerability.

Details

Need permission to use the "data import" function. This was reproduced on Label Studio 1.10.1.

PoC

  1. Create a project. Create a project

  2. Upload a file containing the payload using the "Upload Files" function. 2  Upload a file containing the payload using the Upload Files function 3  complete

The following are the contents of the files used in the PoC

{
  "data": {
    "prompt": "labelstudio universe image",
    "images": [
      {
        "value": "id123#0",
        "style": "margin: 5px",
        "html": "<img width='400' src='https://labelstud.io/_astro/images-tab.64279c16_ZaBSvC.avif' onload=alert(document.cookie)>"
      }
    ]
  }
}
  1. Select the text-to-image generation labeling template of Ranking and scoring 3  Select the text-to-image generation labelling template for Ranking and scoring 5  save

  2. Select a task 4  Select a task

  3. Check that the script is running 5  Check that the script is running

Impact

Malicious scripts can be injected into the code, and when linked with vulnerabilities such as CSRF, it can cause even greater damage. In particular, It can become a source of further attacks, especially when linked to social engineering.

Risk Scores
Base Score
4.7

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. The attacker needs the user to perform some action, like clicking a link. The vulnerability can affect other systems as well, not just the initial system. There is a low impact on the confidentiality of the information.

Threat Intelligence
4.3

Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.

EPSS
2.20%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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