What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-06-19 · updated 2026-06-17
• Weakness: CWE-79

Description

TinyMCE is an open source rich text editor. 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. This vulnerability has been patched in TinyMCE 7.2.0, TinyMCE 6.8.4 and TinyMCE 5.11.0 LTS by ensuring that content within noscript elements are properly parsed. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Affected products

• tinymce: before 5.11.0; from 6.0.0, <6.8.4; from 7.0.0, < 7.2.0

References

• https://github.com/tinymce/tinymce/commit/5acb741665a98e83d62b91713c800abbff43b00d
• https://github.com/tinymce/tinymce/security/advisories/GHSA-w9jx-4g6g-rp7x
• https://owasp.org/www-community/attacks/xss
• https://www.tiny.cloud/docs/tinymce/6/6.8.4-release-notes/#overview
• https://www.tiny.cloud/docs/tinymce/7/7.2-release-notes/#overview
• https://github.com/tinymce/tinymce/commit/5acb741665a98e83d62b91713c800abbff43b00d
• https://github.com/tinymce/tinymce/security/advisories/GHSA-w9jx-4g6g-rp7x
• https://owasp.org/www-community/attacks/xss
• https://www.tiny.cloud/docs/tinymce/6/6.8.4-release-notes/#overview
• https://www.tiny.cloud/docs/tinymce/7/7.2-release-notes/#overview

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