GHSA-38h6-gmr2-j4wx is a medium-severity (CVSS 6.1) Cross-site Scripting (XSS) vulnerability in bigfork/silverstripe-form-capture. O3 Security confirms whether GHSA-38h6-gmr2-j4wx is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Silverstripe Form Capture vulnerable to stored cross-site-scripting
Real-World Exposure
bigfork/silverstripe-form-capture🐘andrewhaine/silverstripe-form-capture🐘andrewhaine/silverstripe-form-capture🐘andrewhaine/silverstripe-form-captureReal-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
Impact
Improper escaping when presenting stored form submissions allowed for an attacker to perform a Cross-Site Scripting attack
Patches
The vulnerability was initially patched in version 1.0.2, and version 1.1.0 includes this patch. The bug was then accidentally re-introduced during a merge error, and has been re-patched in versions 2.2.5 and 3.1.1.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | bigfork/silverstripe-form-capture | ≥ 3.0.0&&< 3.1.1 | 3.1.1 |
| 🐘Packagist | andrewhaine/silverstripe-form-capture | ≥ 0.2.0&&< 1.0.2 | 1.0.2 |
| 🐘Packagist | andrewhaine/silverstripe-form-capture | ≥ 2.0.0&&< 2.2.5 | 2.2.5 |
| 🐘Packagist | andrewhaine/silverstripe-form-capture | ≥ 1.0.0&&< 1.0.2 | 1.0.2 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for bigfork/silverstripe-form-capture. 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 bigfork/silverstripe-form-capture to 3.1.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-38h6-gmr2-j4wx 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-38h6-gmr2-j4wx 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-38h6-gmr2-j4wx. 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-38h6-gmr2-j4wx in your dependencies?
O3 detects GHSA-38h6-gmr2-j4wx across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.