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CVE-2024-38357: TinyMCE Cross-Site Scripting (XSS) vulnerability using noscript elements

June 19, 2024 (updated July 5, 2024)

A cross-site scripting (XSS) vulnerability was discovered in TinyMCE’s content parsing code. This allowed specially crafted noscript elements containing malicious code to be executed when that content was loaded into the editor.

References

  • github.com/advisories/GHSA-w9jx-4g6g-rp7x
  • github.com/tinymce/tinymce
  • github.com/tinymce/tinymce/commit/5acb741665a98e83d62b91713c800abbff43b00d
  • github.com/tinymce/tinymce/commit/a9fb858509f86dacfa8b01cfd34653b408983ac0
  • github.com/tinymce/tinymce/security/advisories/GHSA-w9jx-4g6g-rp7x
  • nvd.nist.gov/vuln/detail/CVE-2024-38357
  • owasp.org/www-community/attacks/xss
  • www.tiny.cloud/docs/tinymce/6/6.8.4-release-notes/
  • www.tiny.cloud/docs/tinymce/7/7.2-release-notes/

Code Behaviors & Features

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Affected versions

All versions before 5.11.0, all versions starting from 6.0.0 before 6.8.4, all versions starting from 7.0.0 before 7.2.0

Fixed versions

  • 5.11.0
  • 6.8.4
  • 7.2.0

Solution

Upgrade to versions 5.11.0, 6.8.4, 7.2.0 or above.

Impact 6.1 MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/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-2024-38357.yml

Spotted a mistake? Edit the file on GitLab.

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