GHSA-gg35-374m-9ph8
LOWGHSA-gg35-374m-9ph8 is a low-severity (CVSS 3.5) Cross-site Scripting (XSS) vulnerability in drupal/simple_multistep. O3 Security confirms whether GHSA-gg35-374m-9ph8 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Drupal Simple multi step form allows Cross-Site Scripting
Real-World Exposure
drupal/simple_multistepReal-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
Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal Simple multi step form allows Cross-Site Scripting (XSS).This issue affects Simple multi step form: from 0.0.0 before 2.0.0.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | drupal/simple_multistep | all versions | 2.0.0 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for drupal/simple_multistep. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update drupal/simple_multistep to 2.0.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-gg35-374m-9ph8 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 pinpoints whether GHSA-gg35-374m-9ph8 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to GHSA-gg35-374m-9ph8. 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-gg35-374m-9ph8 in your dependencies?
O3 detects GHSA-gg35-374m-9ph8 across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.