CVE-2024-38356

TinyMCE Cross-Site Scripting (XSS) vulnerability using noneditable_regexp option

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.

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.20%
Affected: tinymce tinymce
Published at:
Updated at:

References

Link Tags
https://github.com/tinymce/tinymce/security/advisories/GHSA-9hcv-j9pv-qmph
https://github.com/tinymce/tinymce/commit/5acb741665a98e83d62b91713c800abbff43b00d
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

Frequently Asked Questions

What is the severity of CVE-2024-38356?
CVE-2024-38356 has been scored as a medium severity vulnerability.
How to fix CVE-2024-38356?
To fix CVE-2024-38356, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-38356 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-38356 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-38356?
CVE-2024-38356 affects tinymce tinymce.
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