CVE-2024-28184: Weasyprint WeasyPrint Allows The Attachment Of Vulnerability

HIGH
Advisory Identifier: GHSA-35jj-wx47-4w8r
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CVSS 7.4
CWE-829
Published
Advisory Summary

CVE-2024-28184 is a HIGH (CVSS 7.4) weasyprint allows the attachment of vulnerability (CWE-829: Inclusion of Functionality from Untrusted Control Sphere) affecting Weasyprint libraries in the PyPI ecosystem. The issue involves weasyprint allows the attachment of arbitrary files and urls to a pdf. Remediation is available by upgrading affected packages to version 61.2.

CVE-2024-28184 at a Glance

CVE Identifier CVE-2024-28184
GHSA Identifier GHSA-35jj-wx47-4w8r
Severity HIGH
CVSS v3.1 Base Score 7.4
CWE Classification CWE-829: Inclusion of Functionality from Untrusted Control Sphere
Affected Product Weasyprint
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 7.4

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

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

How to Fix CVE-2024-28184

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

weasyprint fixed: 61.2 
pip install weasyprint>=61.2
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 weasyprint

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2024-28184, inspect your installed packages using pip:

pip show weasyprint

Analyze the terminal output to locate any version of Weasyprint in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 61.2), your application is affected.

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

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-829: Inclusion of Functionality from Untrusted Control Sphere, where the product imports, requires, or includes executable functionality (such as a library) from a source that is outside of the intended control sphere. In Weasyprint, 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

### Impact Since version 61.0, there's a vulnerability which allows attaching content of arbitrary files and URLs to a generated PDF document, even if `url_fetcher` is configured to prevent access to files and URLs. ### Patches Fixed by 734ee8e that’s included in 61.2 ### Workarounds - Check that no PDF attachment is defined in source HTML. - Launch WeasyPrint in a sandbox that prevents access to the filesystem and the network.

CVE-2024-28184 Affected Weasyprint Versions

1 component(s)
Fixed Versions:
61.2
Product / Package Ecosystem Affected Versions Fixed Version
weasyprint
pypi/weasyprint
PyPI
≥ 61.0
< 61.2
61.2

References

GitHub Advisory / Wiki ADVISORY
https://github.com/Kozea/WeasyPrint/security/advisories/GHSA-35jj-wx47-4w8r
NVD — CVE-2024-28184 NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-28184
Security Fix Commit FIX COMMIT
https://github.com/Kozea/WeasyPrint/commit/734ee8e2dc84ff3090682f3abff056d0907c8598
Weasyprint Source Repository REPOSITORY
https://github.com/Kozea/WeasyPrint
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZLQZMOEDY72TS43HDXOBVID2VYCTWIH6

Frequently Asked Questions

What is CVE-2024-28184?
CVE-2024-28184 is a security vulnerability in Weasyprint involving WeasyPrint allows the attachment of arbitrary files and URLs to a PDF under CWE-829: Inclusion of Functionality from Untrusted Control Sphere.
Which Weasyprint versions are affected?
Affected versions include releases prior to 61.2 across affected packages: weasyprint.
What version fixes CVE-2024-28184?
Upgrading to 61.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is weasyprint affected?
Yes, weasyprint is affected in releases prior to 61.2. Upgrade your dependency to 61.2 or later.
What is the CVSS score of CVE-2024-28184?
CVE-2024-28184 has a CVSS v3.1 base score of 7.4 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L.
What CWE is associated with CVE-2024-28184?
CVE-2024-28184 is classified under CWE-829: Inclusion of Functionality from Untrusted Control Sphere (The product imports, requires, or includes executable functionality (such as a library) from a source that is outside of the intended control sphere.).
How can I check PyPI dependencies for CVE-2024-28184?
Run the dependency tree command: 'pip show weasyprint'. 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-35jj-wx47-4w8r",
  "modified" : "2025-02-13T19:08:26Z",
  "published" : "2024-03-08T20:42:52Z",
  "aliases" : [ "CVE-2024-28184" ],
  "summary" : "WeasyPrint allows the attachment of arbitrary files and URLs to a PDF",
  "details" : "### Impact\nSince version 61.0, there's a vulnerability which allows attaching content of arbitrary files and URLs to a generated PDF document, even if `url_fetcher` is configured to prevent access to files and URLs.\n\n### Patches\nFixed by 734ee8e that’s included in 61.2\n\n### Workarounds\n- Check that no PDF attachment is defined in source HTML.\n- Launch WeasyPrint in a sandbox that prevents access to the filesystem and the network.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "weasyprint"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "61.0"
      }, {
        "fixed" : "61.2"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 61.1"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/Kozea/WeasyPrint/security/advisories/GHSA-35jj-wx47-4w8r"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-28184"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Kozea/WeasyPrint/commit/734ee8e2dc84ff3090682f3abff056d0907c8598"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/Kozea/WeasyPrint"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZLQZMOEDY72TS43HDXOBVID2VYCTWIH6"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-829" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-03-08T20:42:52Z",
    "nvd_published_at" : "2024-03-09T01:15:07Z"
  }
}