GHSA-5fxv-xx5p-g2fv
HIGHGHSA-5fxv-xx5p-g2fv is a high-severity (CVSS 7.2) CWE-190 vulnerability in microweber/microweber. 1 public exploit reference exists, so weaponization risk is real. O3 Security confirms whether GHSA-5fxv-xx5p-g2fv is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Integer Overflow in microweber
Blast Radius
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
Microweber is a new generation CMS with drag and drop. The microweber application allows large characters to insert in the input field "first & last name" which can allow attackers to cause a Denial of Service (DoS) via a crafted HTTP request. The first name & last name input should be limited to 50 characters or max 100 characters
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | microweber/microweber | all versions | No fix |
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.
Remediation status
No patched version of microweber/microweber has shipped for GHSA-5fxv-xx5p-g2fv yet. Where your build allows, override or pin the dependency away from the vulnerable range, and apply any maintainer-recommended mitigation.
Mitigate without a patch
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-5fxv-xx5p-g2fv 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-5fxv-xx5p-g2fv. 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-5fxv-xx5p-g2fv in your dependencies?
O3 detects GHSA-5fxv-xx5p-g2fv across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.