PT-2021-24351 · Tinymce · Tinymce

Yakir6 · Published 2021-11-02 · Updated 2025-11-28 · CVE-2024-21910

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: TinyMCE versions prior to 5.10.0

Description: A cross-site scripting vulnerability was discovered in the URL processing logic of the image and link plugins, allowing arbitrary JavaScript execution when updating an image or link using a specially crafted URL. This issue only impacts users while editing, and the dangerous URLs are stripped in any content extracted from the editor.

Recommendations: To resolve the issue, either:

• Upgrade to TinyMCE 5.10.0 or higher
• Disable the image and link plugins as a temporary workaround until a patch is available.

Exploit

Fix

XSS

Weakness Enumeration

CWE-64

CWE-79

Related Identifiers

CVE-2024-21910

GHSA-R8HM-W5F7-WJ39

GHSA-WXJ2-777F-VXMF

Affected Products

Tinymce

References · 20

• 🔥 https://github.com/advisories/GHSA-r8hm-w5f7-wj39 · Exploit
• https://github.com/tinymce/tinymce/security/advisories/GHSA-r8hm-w5f7-wj39 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-21910 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2024-21910 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-r8hm-w5f7-wj39 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2024-21910 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-wxj2-777f-vxmf · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2024-21910 · Security Note
• https://ubuntu.com/security/CVE-2024-21910 · Vendor Advisory
• https://github.com/tinymce/tinymce · Note
• https://github.com/jazzband/django-tinymce/releases/tag/3.4.0 · Note
• https://github.com/jazzband/django-tinymce/issues/366 · Note
• https://vulncheck.com/advisories/vc-advisory-GHSA-r8hm-w5f7-wj39 · Note
• https://pypi.org/project/django-tinymce/3.4.0 · Note
• https://twitter.com/CVEnew/status/1742581606739771565 · Twitter Post