CVE-2025-6674

mediumpriority · track · 0EPSS 0.002 · 12 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.22% (12th) EPSS

CVSS 6.1 · medium

Is it mine?

19 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

6.1

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.16.1mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Nsecondary · ENISA EU

v3.16.1mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Nsecondaryexploitability 2.8 · impact 2.7

v3.15.6mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-79US

affected products (19)

Products and version ranges known to be affected.

Open Source Drupal CKEditor5 Youtube <1.0.3all versionscert_bundDE
Open Source Drupal GLightbox <1.0.16all versionscert_bundDE
Open Source Drupal Klaro Cookie & Consent Management <3.0.7all versionscert_bundDEcpe:/a:drupal:drupal:klaro_cookie__consent_management__3.0.7
Open Source Drupal Open Social <12.3.14all versionscert_bundDE
Open Source Drupal Open Social <12.4.13all versionscert_bundDE
Open Source Drupal Paragraphs Table <2.0.5all versionscert_bundDE
Open Source Drupal Simple XML Sitemap <4.2.2all versionscert_bundDE
Open Source Drupal Toc.js <3.2.1all versionscert_bundDE
Open Source Drupal≤ GLightbox <1.0.16cert_bundDE
Open Source Drupal≤ CKEditor5 Youtube <1.0.3cert_bundDE
Open Source Drupal≤ Open Social <12.3.14cert_bundDE
Open Source Drupal≤ Open Social <12.4.13cert_bundDE
Open Source Drupal≤ Paragraphs Table <2.0.5cert_bundDE
Open Source Drupal≤ Simple XML Sitemap <4.2.2cert_bundDE
Open Source Drupal≤ Toc.js <3.2.1cert_bundDE
Drupal CKEditor5 Youtube0.0.0 → 1.0.3enisa_euvdEU
Drupal CKEditor5 Youtube0.0.0 → 1.0.4enisa_euvdEU
gabderrahim ckeditor5 youtube< 1.0.4nvdUScpe:2.3:a:gabderrahim:ckeditor5_youtube:*:*:*:*:*:*:*:*
Packagist:https://packages.drupal.org/8 drupal/ckeditor5_youtube< 1.0.4osvUSpkg:composer/drupal/ckeditor5_youtube?repository_url=https:%2F%2Fpackages.drupal.org%2F8

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2025-1404Drupal Module: Mehrere SchwachstellenDeutsch2025-06-25csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Drupal ausnutzen, um einen Cross-Site Scripting Angriff durchzuführen, und um Sicherheitsvorkehrungen zu umgehen.
DRUPAL-CONTRIB-2025-0812025-06-25vendor · osvUS
The CKEditor5 Youtube module enhances content creation in Drupal by seamlessly integrating YouTube video embedding into the CKEditor 5 text editor. The module doesn't sufficiently validate iframe sources under the scenario where a user embeds a video using the CKEditor YouTube integration leading to a Cross-site Scripting (XSS) vulnerabiity. This vulnerability is mitigated by the fact that an attacker must have a role with necessary permissions to use CKEditor Youtube embed button.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd osv NVD CVE.org MITRE

published 2025-06-26modified 2026-06-17

references (3)

External citations — patches, advisories, analysis.

scry

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