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CVE-2024-29881: TinyMCE Cross-Site Scripting (XSS) vulnerability in handling external SVG files through Object or Embed elements

March 26, 2024

A cross-site scripting (XSS) vulnerability was discovered in TinyMCE’s content loading and content inserting code. A SVG image could be loaded though an object or embed element and that image could potentially contain a XSS payload.

References

  • github.com/advisories/GHSA-5359-pvf2-pw78
  • github.com/tinymce/tinymce
  • github.com/tinymce/tinymce/commit/bcdea2ad14e3c2cea40743fb48c63bba067ae6d1
  • github.com/tinymce/tinymce/security/advisories/GHSA-5359-pvf2-pw78
  • nvd.nist.gov/vuln/detail/CVE-2024-29881
  • www.tiny.cloud/docs/tinymce/6/6.8.1-release-notes/
  • www.tiny.cloud/docs/tinymce/7/7.0-release-notes/

Code Behaviors & Features

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Affected versions

All versions before 7.0.0

Fixed versions

  • 7.0.0

Solution

Upgrade to version 7.0.0 or above.

Impact 4.3 MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Learn more about CVSS

Weakness

  • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Source file

nuget/TinyMCE/CVE-2024-29881.yml

Spotted a mistake? Edit the file on GitLab.

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