GHSA-xmjc-63pr-2mpg — drupal/core
MEDIUMGHSA-xmjc-63pr-2mpg is a medium-severity (CVSS 6.6) CWE-915 vulnerability in drupal/core. A fix is available for drupal/core — see the affected versions and patch details below.
Drupal core allows Object Injection
Exploitation Status
No confirmed exploitation observed yet
- A successful exploit gives an attacker total control of the affected component, not partial access.
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for GHSA-xmjc-63pr-2mpg.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
GHSA-xmjc-63pr-2mpg by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.
Where this sits among everything scored
Of 382,205 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.
Real-World Exposure
drupal/core🐘drupal/core🐘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
Improperly Controlled Modification of Dynamically-Determined Object Attributes vulnerability in Drupal Drupal core allows Object Injection.
This issue affects Drupal core: from 8.0.0 before 10.5.9, from 10.6.0 before 10.6.7, from 11.0.0 before 11.2.11, from 11.3.0 before 11.3.7.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | drupal/core | ≥ 8.0.0&&< 10.5.9 | 10.5.9composer require drupal/core:^10.5.9 |
| 🐘Packagist | drupal/core | ≥ 10.6.0&&< 10.6.7 | 10.6.7composer require drupal/core:^10.6.7 |
| 🐘Packagist | drupal/core | ≥ 11.0.0&&< 11.2.11 | 11.2.11composer require drupal/core:^11.2.11 |
| 🐘Packagist | drupal/core | ≥ 11.3.0&&< 11.3.7 | 11.3.7composer require drupal/core:^11.3.7 |
Affected Products
drupaldrupalDetection & 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 10.5.9 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-xmjc-63pr-2mpg 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.
Frequently Asked Questions
Is GHSA-xmjc-63pr-2mpg in your dependencies?
Find it across Packagist, including transitive dependencies.