CVE-2024-29203

MEDIUM

TinyMCE < 6.8.1 - Cross-Site Scripting via Iframe Element Insertion

Title source: llm

Description

TinyMCE is an open source rich text editor. A cross-site scripting (XSS) vulnerability was discovered in TinyMCE’s content insertion code. This allowed `iframe` elements containing malicious code to execute when inserted into the editor. These `iframe` elements are restricted in their permissions by same-origin browser protections, but could still trigger operations such as downloading of malicious assets. This vulnerability is fixed in 6.8.1.

References (4)

Core 4

Core References

Vendor Advisory x_refsource_confirm

https://github.com/tinymce/tinymce/security/advisories/GHSA-438c-3975-5x3f

Patch x_refsource_misc

https://github.com/tinymce/tinymce/commit/bcdea2ad14e3c2cea40743fb48c63bba067ae6d1

View Patch ZIP pw:eip

Release Notes x_refsource_misc

https://www.tiny.cloud/docs/tinymce/6/6.8.1-release-notes/#new-convert_unsafe_embeds-option-that-controls-whether-object-and-embed-elements-will-be-converted-to-more-restrictive-alternatives-namely-img-for-image-mime-types-video-for-video-mime-types-audio-audio-mime-types-or-iframe-for-other-or-unspecified-mime-types

Release Notes x_refsource_misc

https://www.tiny.cloud/docs/tinymce/7/7.0-release-notes/#sandbox_iframes-editor-option-is-now-defaulted-to-true

Scores

CVSS v3 4.3

EPSS 0.0160

EPSS Percentile 82.0%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-79

Status published

Products (4)

npm/tinymce 0 - 6.8.1npm

nuget/TinyMCE 0 - 6.8.1NuGet

tiny/tinymce < 6.8.1

tinymce/tinymce 0 - 6.8.1Packagist

Published Mar 26, 2024

Tracked Since Feb 18, 2026