What is CVE-2025-6674?

CVE-2025-6674 is a medium-severity vulnerability in Drupal Ckeditor5 Youtube, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2025-06-26.

How severe is CVE-2025-6674?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Drupal Ckeditor5 Youtube

CVE-2025-6674

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Drupal CKEditor5 Youtube allows Cross-Site Scripting (XSS).This issue affects CKEditor5 Youtube: from 0.0.0 before 1.0.3.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (8.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Drupal Ckeditor5 Youtube — versions 0.0.0
Gabderrahim Ckeditor5_youtube

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

mlhess@drupal.org (Vendor Advisory)

Frequently asked questions

What is CVE-2025-6674?: CVE-2025-6674 is a medium-severity vulnerability in Drupal Ckeditor5 Youtube, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2025-06-26.
How severe is CVE-2025-6674?: Medium severity. CVSS v3 base score is 6.1 out of 10.