CVE-2024-21910

Name: CVE-2024-21910
Creator: NVD / NIST
Published: 2024-01-03T16:15:09.09+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.96%

Last modified Jun 17, 2026

CVE-2024-21910 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. TinyMCE versions before 5.10.0 are affected by a cross-site scripting vulnerability. A remote and unauthenticated attacker could introduce crafted image or link URLs that would result in the execution of arbitrary JavaScript in an editing user's browser.. EPSS estimates a 0.96% chance of exploitation in the next 30 days.

Description

TinyMCE versions before 5.10.0 are affected by a cross-site scripting vulnerability. A remote and unauthenticated attacker could introduce crafted image or link URLs that would result in the execution of arbitrary JavaScript in an editing user's browser.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

0.96%

56.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Tiny	Tinymce	< 5.10.0

References

https://github.com/advisories/GHSA-r8hm-w5f7-wj39Exploit, Third Party Advisory
https://github.com/jazzband/django-tinymce/issues/366Issue Tracking, Third Party Advisory
https://github.com/jazzband/django-tinymce/releases/tag/3.4.0Release Notes
https://github.com/tinymce/tinymce/security/advisories/GHSA-r8hm-w5f7-wj39Third Party Advisory
https://pypi.org/project/django-tinymce/3.4.0/Release Notes
https://vulncheck.com/advisories/vc-advisory-GHSA-r8hm-w5f7-wj39Third Party Advisory
https://github.com/advisories/GHSA-r8hm-w5f7-wj39Exploit, Third Party Advisory
https://github.com/jazzband/django-tinymce/issues/366Issue Tracking, Third Party Advisory
https://github.com/jazzband/django-tinymce/releases/tag/3.4.0Release Notes
https://github.com/tinymce/tinymce/security/advisories/GHSA-r8hm-w5f7-wj39Third Party Advisory
https://pypi.org/project/django-tinymce/3.4.0/Release Notes
https://vulncheck.com/advisories/vc-advisory-GHSA-r8hm-w5f7-wj39Third Party Advisory

Timeline

Published: Jan 3, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2024-21910?

How severe is CVE-2024-21910?

CVE-2024-21910 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.96% probability of exploitation in the next 30 days.

How do I fix CVE-2024-21910?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-21910?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST