GHSA-v273-j5hq-26xp — drupal/core
MEDIUMGHSA-v273-j5hq-26xp is a medium-severity (CVSS 4.2) vulnerability in drupal/core. A fix is available for drupal/core — see the affected versions and patch details below.
Drupal core uses a vulnerable Third-party library CKEditor
Real-World Exposure
drupal/core🐘drupal/coreReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.
Description
The Drupal project uses the third-party library CKEditor, which has released a security improvement that is needed to protect some Drupal configurations.
Vulnerabilities are possible if Drupal is configured to use the WYSIWYG CKEditor for your site's users. An attacker that can create or edit content may be able to exploit this Cross Site Scripting (XSS) vulnerability to target users with access to the WYSIWYG CKEditor, and this may include site admins with privileged access.
The latest versions of Drupal update CKEditor to 4.14 to mitigate the vulnerabilities.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | drupal/core | ≥ 8.0.0&&< 8.7.12 | 8.7.12composer require drupal/core:^8.7.12 |
| 🐘Packagist | drupal/core | ≥ 8.8.0&&< 8.8.4 | 8.8.4composer require drupal/core:^8.8.4 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for drupal/core, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update drupal/core to 8.7.12 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-v273-j5hq-26xp is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-v273-j5hq-26xp can be triaged on real exposure rather than presence alone.
Tailored to GHSA-v273-j5hq-26xp. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is GHSA-v273-j5hq-26xp in your dependencies?
O3 Security finds GHSA-v273-j5hq-26xp across Packagist dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.