
Bug bounty and vulnerability research reports by Desai Vinayak — includes CVE-2023-50290 (Apache Solr) and Zscaler subdomain takeover findings.
🔒 Bug bounty and vulnerability research reports by Desai Vinayak.
This repository collects passive, non-destructive vulnerability write-ups and supporting evidence for coordinated disclosure and remediation tracking.
📂 reports/ — PDF, DOCX, and evidence files for each report:
Bug_Bounty_Report_Desai_Vinayak_CVE-2023-50290.pdf — Apache Solr Metrics API information disclosure (CVE-2023-50290).zscaler_bugbounty_report.pdf — Potential subdomain takeover findings for selected zscaler.com subdomains.CVE-2023-50290_summary.md — Markdown summary of the Solr report.zscaler_subdomain_takeover_summary.md — Markdown summary of the Zscaler findings.🧾 Other files
CONTRIBUTING.md — Guidance for triage teams and vendors.DISCLOSURE_POLICY.md — Coordinated disclosure expectations.ISSUE_TEMPLATE.md — Template to open remediation/tracking issues..github/workflows/ — CI placeholders.PUBLISH.md — Quick publish instructions.This repository currently contains two primary reports produced via passive reconnaissance:
The Solr Metrics API can expose environment and configuration details that may leak sensitive information.
📄 See the Solr PDF and summary in /reports.
Several zscaler.com subdomains resolve to third-party hosts returning provider unconfigured/error pages (e.g., AWS ELB, Acquia, UptimeRobot).
These may be vulnerable to takeover if unprovisioned.
📄 See the Zscaler PDF and summary in /reports.
🧷 All scans and evidence collection were passive and non-destructive:
DNS lookups, certificate-transparency checks, HTTP headers, and non-invasive content captures.
No credentials, no POST requests, no exploitation performed.
👩💻 Vendors / Triage Teams
ISSUE_TEMPLATE.md./reports/.🧑🔬 External Researchers
DISCLOSURE_POLICY.md)✅ Remove or fix unused CNAME records that point to third-party services.
✅ Properly configure custom domains on provider dashboards for services in use.
✅ Restrict access to sensitive admin endpoints (e.g., Solr /admin/metrics) and require authentication.
✅ Rotate any secrets that may have been exposed via configuration or environment variables.
✅ Implement DNS monitoring and alerting for unexpected external CNAMEs or CT-log changes.
📎 Detailed remediation steps are included in each report.
Reporter: Desai Vinayak
📧 Email: [email protected]
Please acknowledge receipt and provide a remediation timeline when opening issues or contacting the reporter.
Coordinated disclosure is requested — public disclosure should be delayed until remediation is complete (see DISCLOSURE_POLICY.md).
🪪 This repository is distributed under the MIT License.
See LICENSE for full terms.