HumanSignal label-studio up to 1.17.x views.py cross site scripting

Summaryinfo

A vulnerability described as problematic has been identified in HumanSignal label-studio up to 1.17.x. The impacted element is an unknown function of the file label_studio/projects/views.py. The manipulation results in cross site scripting. This vulnerability is cataloged as CVE-2025-47783. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, was found in HumanSignal label-studio up to 1.17.x. Affected is an unknown code block of the file label_studio/projects/views.py. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. CVE summarizes:

Label Studio is a multi-type data labeling and annotation tool. A vulnerability in versions prior to 1.18.0 allows an attacker to inject a malicious script into the context of a web page, which can lead to data theft, session hijacking, unauthorized actions on behalf of the user, and other attacks. The vulnerability is reproducible when sending a properly formatted request to the `POST /projects/upload-example/` endpoint. In the source code, the vulnerability is located at `label_studio/projects/views.py`. Version 1.18.0 contains a patch for the issue.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2025-47783 since 05/09/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007.

Upgrading to version 1.18.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-14944). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• HumanSignal

Name

• label-studio

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7
• 1.8
• 1.9
• 1.10
• 1.11
• 1.12
• 1.13
• 1.14
• 1.15
• 1.16
• 1.17

Website

• Product: https://github.com/HumanSignal/label-studio/

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Once again VulDB remains the best source for vulnerability data.

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