Description
TinyMCE is an open source rich text editor. A cross-site scripting (XSS) vulnerability was discovered in TinyMCE’s content extraction code. When using the `noneditable_regexp` option, specially crafted HTML attributes containing malicious code were able to be executed when content was extracted from 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, when using the `noneditable_regexp` option, any content within an attribute is properly verified to match the configured regular expression before being added. Users are advised to upgrade. There are no known workarounds for this vulnerability.
References (5)
Core 5
Core References
Patch x_refsource_misc
https://github.com/tinymce/tinymce/commit/5acb741665a98e83d62b91713c800abbff43b00d
Vendor Advisory x_refsource_confirm
https://github.com/tinymce/tinymce/security/advisories/GHSA-9hcv-j9pv-qmph
Various Sources x_refsource_misc
https://owasp.org/www-community/attacks/xss
Various Sources x_refsource_misc
https://www.tiny.cloud/docs/tinymce/6/6.8.4-release-notes/#overview
Various Sources x_refsource_misc
https://www.tiny.cloud/docs/tinymce/7/7.2-release-notes/#overview
Scores
CVSS v3
6.1
EPSS
0.0074
EPSS Percentile
73.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-79
Status
published
Products (7)
npm/tinymce
0 - 5.11.0npm
nuget/TinyMCE
0 - 5.11.0NuGet
pypi/django-tinymce
0 - 4.1.0PyPI
tinymce/tinymce
0 - 5.11.0Packagist
tinymce/tinymce
< 5.11.0
tinymce/tinymce
>= 6.0.0, <6.8.4
tinymce/tinymce
>= 7.0.0, < 7.2.0
Published
Jun 19, 2024
Tracked Since
Feb 18, 2026