CVE-2024-26152: Label studio Cross-Site Scripting Vulnerability

MODERATE
Advisory Identifier: GHSA-6xv9-957j-qfhg
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CVSS 4.7
CWE-79
Published
Advisory Summary

CVE-2024-26152 is a MODERATE (CVSS 4.7) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Label studio libraries in the PyPI ecosystem. The issue involves label studio vulnerable to cross-site scripting if `<choices>` or `<labels>` are used in labeling config. Remediation is available by upgrading affected packages to version 1.11.0.

CVE-2024-26152 at a Glance

CVE Identifier CVE-2024-26152
GHSA Identifier GHSA-6xv9-957j-qfhg
Severity MODERATE
CVSS v3.1 Base Score 4.7
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Label studio
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 4.7

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction Required (UI:R)
Scope Changed (S:C)
Confidentiality Low (C:L)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2024-26152

To remediate this vulnerability, upgrade all affected Label studio dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

label-studio fixed: 1.11.0 
pip install label-studio>=1.11.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show label-studio

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2024-26152, inspect your installed packages using pip:

pip show label-studio

Analyze the terminal output to locate any version of Label studio in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.11.0), your application is affected.

Note: The pip show label-studio command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), where 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. In Label studio, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### 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/3943358/9b1536ad-feac-4238-a1bd-ca9b1b798673) 2. Upload a file containing the payload using the "Upload Files" function. ![2 Upload a file containing the payload using the Upload Files function](https://github.com/HumanSignal/label-studio/assets/3943358/26bb7af1-1cd2-408f-9adf-61e31a5b7328) ![3 complete](https://github.com/HumanSignal/label-studio/assets/3943358/f2f62774-1fa6-4456-9e6f-8fa1ca0a2d2e) 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)>" } ] } } ``` 3. 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](https://github.com/HumanSignal/label-studio/assets/3943358/f227f49c-a718-4738-bc2a-807da4f97155) ![5 save](https://github.com/HumanSignal/label-studio/assets/3943358/9b529f8a-8e99-4bb0-bdf6-bb7a95c9b75d) 4. Select a task ![4 Select a task](https://github.com/HumanSignal/label-studio/assets/3943358/71856b7a-2b1f-44ea-99ab-fc48bc20caa7) 5. Check that the script is running ![5 Check that the script is running](https://github.com/HumanSignal/label-studio/assets/3943358/e396ae7b-a591-4db7-afe9-5bab30b48cb9) ### 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.

CVE-2024-26152 Affected Label studio Versions

1 component(s)
Fixed Versions:
1.11.0
Product / Package Ecosystem Affected Versions Fixed Version
label-studio
pypi/label-studio
PyPI
< 1.11.0
1.11.0

References

GitHub Advisory / Wiki ADVISORY
https://github.com/HumanSignal/label-studio/security/advisories/GHSA-6xv9-957j-qfhg
NVD — CVE-2024-26152 NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-26152
Label studio Source Repository REPOSITORY
https://github.com/HumanSignal/label-studio/pull/5232
Security Fix Commit FIX COMMIT
https://github.com/HumanSignal/label-studio/commit/5df9ae3828b98652e9fa290a19f4deedf51ef6c8
Label studio Source Repository REPOSITORY
https://github.com/HumanSignal/label-studio
Label studio Release RELEASE
https://github.com/HumanSignal/label-studio/releases/tag/1.11.0
Label studio Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/label-studio/PYSEC-2024-249.yaml

Frequently Asked Questions

What is CVE-2024-26152?
CVE-2024-26152 is a security vulnerability in Label studio involving Label Studio vulnerable to Cross-site Scripting if `<Choices>` or `<Labels>` are used in labeling config under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Label studio versions are affected?
Affected versions include releases prior to 1.11.0 across affected packages: label-studio.
What version fixes CVE-2024-26152?
Upgrading to 1.11.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is label-studio affected?
Yes, label-studio is affected in releases prior to 1.11.0. Upgrade your dependency to 1.11.0 or later.
What is the CVSS score of CVE-2024-26152?
CVE-2024-26152 has a CVSS v3.1 base score of 4.7 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N.
What CWE is associated with CVE-2024-26152?
CVE-2024-26152 is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (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.).
How can I check PyPI dependencies for CVE-2024-26152?
Run the dependency tree command: 'pip show label-studio'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-6xv9-957j-qfhg",
  "modified" : "2025-05-19T20:45:07Z",
  "published" : "2024-02-22T21:52:57Z",
  "aliases" : [ "CVE-2024-26152" ],
  "summary" : "Label Studio vulnerable to Cross-site Scripting if `<Choices>` or `<Labels>` are used in labeling config ",
  "details" : "### Summary\nOn 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.\n\n### Details\nNeed permission to use the \"data import\" function. This was reproduced on Label Studio 1.10.1.\n\n### PoC\n\n1. Create a project.\n![Create a project](https://github.com/HumanSignal/label-studio/assets/3943358/9b1536ad-feac-4238-a1bd-ca9b1b798673)\n\n2. Upload a file containing the payload using the \"Upload Files\" function.\n![2  Upload a file containing the payload using the Upload Files function](https://github.com/HumanSignal/label-studio/assets/3943358/26bb7af1-1cd2-408f-9adf-61e31a5b7328)\n![3  complete](https://github.com/HumanSignal/label-studio/assets/3943358/f2f62774-1fa6-4456-9e6f-8fa1ca0a2d2e)\n\nThe following are the contents of the files used in the PoC\n```\n{\n  \"data\": {\n    \"prompt\": \"labelstudio universe image\",\n    \"images\": [\n      {\n        \"value\": \"id123#0\",\n        \"style\": \"margin: 5px\",\n        \"html\": \"<img width='400' src='https://labelstud.io/_astro/images-tab.64279c16_ZaBSvC.avif' onload=alert(document.cookie)>\"\n      }\n    ]\n  }\n}\n```\n\n3. Select the text-to-image generation labeling template of Ranking and scoring\n![3  Select the text-to-image generation labelling template for Ranking and scoring](https://github.com/HumanSignal/label-studio/assets/3943358/f227f49c-a718-4738-bc2a-807da4f97155)\n![5  save](https://github.com/HumanSignal/label-studio/assets/3943358/9b529f8a-8e99-4bb0-bdf6-bb7a95c9b75d)\n\n4. Select a task\n![4  Select a task](https://github.com/HumanSignal/label-studio/assets/3943358/71856b7a-2b1f-44ea-99ab-fc48bc20caa7)\n\n5. Check that the script is running\n![5  Check that the script is running](https://github.com/HumanSignal/label-studio/assets/3943358/e396ae7b-a591-4db7-afe9-5bab30b48cb9)\n\n### Impact\nMalicious 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.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "label-studio"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.11.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/HumanSignal/label-studio/security/advisories/GHSA-6xv9-957j-qfhg"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-26152"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/HumanSignal/label-studio/pull/5232"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/HumanSignal/label-studio/commit/5df9ae3828b98652e9fa290a19f4deedf51ef6c8"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/HumanSignal/label-studio"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/HumanSignal/label-studio/releases/tag/1.11.0"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/label-studio/PYSEC-2024-249.yaml"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-02-22T21:52:57Z",
    "nvd_published_at" : "2024-02-22T22:15:47Z"
  }
}