GHSA-qjfx-fvx7-3wvw is a medium-severity (CVSS 6) CWE-840 vulnerability in microweber/microweber. 1 public exploit reference exists, so weaponization risk is real. O3 Security confirms whether GHSA-qjfx-fvx7-3wvw is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Business Logic Errors in microweber/microweber
Real-World Exposure
microweber/microweberReal-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
A vulnerability has been identified in microweber where users can purchase items with a coupon code. If the admin disables the use of the coupon code functionality, but the user sends requests to the API that handles the coupon code, the user can exploit the vulnerability and obtain items at a lower price.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | microweber/microweber | all versions | 2.0.0 |
Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for microweber/microweber. 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 microweber/microweber to 2.0.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-qjfx-fvx7-3wvw 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-qjfx-fvx7-3wvw 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-qjfx-fvx7-3wvw. 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-qjfx-fvx7-3wvw in your dependencies?
O3 detects GHSA-qjfx-fvx7-3wvw across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.