qcubed reflected cross-site scripting (XSS) vulnerabilityGHSA-xj4v-gp4q-h6qq
MEDIUMFix: qcubed/qcubed#1320GHSA-xj4v-gp4q-h6qq is a medium-severity (CVSS 6.1) Cross-site Scripting (XSS) vulnerability in qcubed/qcubed. 3 public exploit or proof-of-concept references are indexed, so weaponization risk is real. A fix is available for qcubed/qcubed — see the affected versions and patch details below.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
Real-World Exposure
qcubed/qcubedReal-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 reflected cross-site scripting (XSS) vulnerability in qcubed (all versions including 3.1.1) in profile.php via the stQuery-parameter allows unauthenticated attackers to steal sessions of authenticated users.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | qcubed/qcubed | all versions | 3.2composer require qcubed/qcubed:^3.2 |
Affected Products
qcubedqcubedResearch 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 qcubed/qcubed, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update qcubed/qcubed to 3.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-xj4v-gp4q-h6qq is resolved across your whole dependency graph.
Workarounds
Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.
How to detect GHSA-xj4v-gp4q-h6qq
A community-maintained Nuclei template exists for this CVE. You can scan for it directly:
nuclei -id ghsa-xj4v-gp4q-h6qq -u https://target- Template
- QCube Cross-Site-Scripting
- Severity
- medium
- Impact
- Successful exploitation of this vulnerability could allow an attacker to execute malicious scripts in the victim's browser, potentially leading to session hijacking, defacement, or theft of sensitive information.
- Remediation
- Upgrade to the latest version to mitigate this vulnerability.
Template by ProjectDiscovery nuclei-templates (pikpikcu), MIT licensed. View the full template. Scan only systems you are authorised to test.
Frequently Asked Questions
Is GHSA-xj4v-gp4q-h6qq in your dependencies?
Find it across Packagist, including transitive dependencies.