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HumanSignal vulnerability results
VulnerabilityTitle and contextCVSSEPSSPoCsSignalsSTIX action

HumanSignal Label Studio - Server-Side Request Forgery

A server-side request forgery vulnerability in HumanSignal Label Studio through 1.24.0.dev0 exists because SSRF_PROTECTION_ENABLED is set to false by default. The import-from-URL endpoint fetches any caller-supplied URL including internal loopback addresses on the default installation. An authenticated user can use this to reach internal services, cloud metadata endpoints, and other resources not intended for external access.

CWE-918Aug 11, 2026
CVSS6.5v3.1EPSS0.201%PoCs0SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templatesSTIX

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

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 en

CVSS8.6v4.0EPSS0.253%PoCs0SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templatesSTIX

HumanSignal label-studio-ml-backend PT File neural_nets.py load deserialization

A vulnerability has been found in HumanSignal label-studio-ml-backend up to 9fb7f4aa186612806af2becfb621f6ed8d9fdbaf and classified as problematic. Affected by this vulnerability is the function load of the file label-studio-ml-backend/label_studio_ml/examples/yolo/utils/neural_nets.py of the component PT File Handler. The manipulation of the argument path leads to deserialization. An attack has to be approached locally. This product takes the approach of rolling releases to provide continious d

CWE-20CWE-502May 26, 2025
CVSS4.8v4.0EPSS0.195%PoCs0SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templatesSTIX

label-studio vulnerable to Cross-Site Scripting (Reflected) via the label_config parameter.

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

CWE-79May 14, 20251 related artifact
CVSS7.6v4.0EPSS0.578%PoCs0SignalsNot listed in CISA KEVNo known ransomware use1 Nuclei templateSTIX

Label Studio allows Server-Side Request Forgery in the S3 Storage Endpoint

Label Studio is an open source data labeling tool. Prior to version 1.16.0, Label Studio's S3 storage integration feature contains a Server-Side Request Forgery (SSRF) vulnerability in its endpoint configuration. When creating an S3 storage connection, the application allows users to specify a custom S3 endpoint URL via the s3_endpoint parameter. This endpoint URL is passed directly to the boto3 AWS SDK without proper validation or restrictions on the protocol or destination. The vulnerability a

CWE-918Feb 14, 2025
CVSS8.6v3.1EPSS0.644%PoCs0SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templatesSTIX

Label Studio allows Cross-Site Scripting (XSS) via GET request to `/projects/upload-example` endpoint

Label Studio is an open source data labeling tool. Prior to version 1.16.0, Label Studio's `/projects/upload-example` endpoint allows injection of arbitrary HTML through a `GET` request with an appropriately crafted `label_config` query parameter. By crafting a specially formatted XML label config with inline task data containing malicious HTML/JavaScript, an attacker can achieve Cross-Site Scripting (XSS). While the application has a Content Security Policy (CSP), it is only set in report-only

CWE-79Feb 14, 20251 related artifact
CVSS6.1v3.1EPSS1.87%PoCs1SignalsNot listed in CISA KEVNo known ransomware use1 Nuclei templateSTIX

Label Studio has a Path Traversal Vulnerability via image Field

Label Studio is an open source data labeling tool. A path traversal vulnerability in Label Studio SDK versions prior to 1.0.10 allows unauthorized file access outside the intended directory structure. The flaw exists in the VOC, COCO and YOLO export functionalities. These functions invoke a `download` function on the `label-studio-sdk` python package, which fails to validate file paths when processing image references during task exports. By creating tasks with path traversal sequences in the im

CWE-22CWE-26Feb 14, 2025
CVSS8.7v4.0EPSS0.733%PoCs0SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templatesSTIX

Label Studio vulnerable to Cross-site Scripting if `<Choices>` or `<Labels>` are used in labeling config

### 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`](https://labelstud.io/tags/choices) or [`Labels`](https://labelstud.io/tags/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](https://github.com/HumanSignal/label-studio/assets/

CWE-79Feb 22, 2024
CVSS4.7v3.1EPSS2.22%PoCs0SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templatesSTIX

Label Studio SSRF on Import Bypassing `SSRF_PROTECTION_ENABLED` Protections

Label Studio is a popular open source data labeling tool. The vulnerability affects all versions of Label Studio prior to 1.11.0 and was tested on version 1.8.2. Label Studio's SSRF protections that can be enabled by setting the `SSRF_PROTECTION_ENABLED` environment variable can be bypassed to access internal web servers. This is because the current SSRF validation is done by executing a single DNS lookup to verify that the IP address is not in an excluded subnet range. This protection can be by

CWE-918Jan 31, 2024
CVSS5.3v3.1EPSS0.737%PoCs0SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templatesSTIX

Label Studio XSS Vulnerability on Data Import

Label Studio, an open source data labeling tool had a remote import feature allowed users to import data from a remote web source, that was downloaded and could be viewed on the website. Prior to version 1.10.1, this feature could had been abused to download a HTML file that executed malicious JavaScript code in the context of the Label Studio website. Executing arbitrary JavaScript could result in an attacker performing malicious actions on Label Studio users if they visit the crafted avatar im

CWE-79Jan 23, 2024
CVSS4.7v3.1EPSS0.592%PoCs0SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templatesSTIX

Label Studio XSS Vulnerability on Avatar Upload

Label Studio is an a popular open source data labeling tool. Versions prior to 1.9.2 have a cross-site scripting (XSS) vulnerability that could be exploited when an authenticated user uploads a crafted image file for their avatar that gets rendered as a HTML file on the website. Executing arbitrary JavaScript could result in an attacker performing malicious actions on Label Studio users if they visit the crafted avatar image. For an example, an attacker can craft a JavaScript payload that adds a

CWE-79Jan 23, 20241 related artifact
CVSS7.1v3.1EPSS1.45%PoCs0SignalsNot listed in CISA KEVNo known ransomware use1 Nuclei templateSTIX

Object Relational Mapper Leak Vulnerability in Filtering Task in Label Studio

Label Studio is an open source data labeling tool. In all current versions of Label Studio prior to 1.9.2post0, the application allows users to insecurely set filters for filtering tasks. An attacker can construct a filter chain to filter tasks based on sensitive fields for all user accounts on the platform by exploiting Django's Object Relational Mapper (ORM). Since the results of query can be manipulated by the ORM filter, an attacker can leak these sensitive fields character by character. In

CWE-200Nov 13, 20231 related artifact
CVSS7.5v3.1EPSS4.06%PoCs0SignalsNot listed in CISA KEVNo known ransomware use1 Nuclei templateSTIX

Label Studio has Hardcoded Django `SECRET_KEY` that can be Abused to Forge Session Tokens

Label Studio is a multi-type data labeling and annotation tool with standardized output format. There is a vulnerability that can be chained within the ORM Leak vulnerability to impersonate any account on Label Studio. An attacker could exploit these vulnerabilities to escalate their privileges from a low privilege user to a Django Super Administrator user. The vulnerability was found to affect versions before `1.8.2`, where a patch was introduced.

CWE-200Nov 9, 2023
CVSS9.8v3.1EPSS1.24%PoCs0SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templatesSTIX