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CVE-2021-27130

Critical Vulnerability: CVE-2021-27130 — janobe — online_reviewer_system

Online Reviewer System 1.0 contains a SQL injection vulnerability through authentication bypass, which may lead to a reverse shell upload.

Tuesday, April 14, 2026janobeVulnios Threat Intelligence
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Executive Summary

Online Reviewer System 1.0 contains a SQL injection vulnerability through authentication bypass, which may lead to a reverse shell upload.

Why It Matters

CVE-2021-27130 is rated CRITICAL severity, requiring immediate attention from security teams.

CVSS Base Score: 9.8/10

EPSS (Exploit Prediction): 0.5% probability of exploitation in the next 30 days.

Affected Technologies

Vendors: janobe

Products: online_reviewer_system

🛡️What Defenders Should Check

  • Check if you are affected — Review your asset inventory for products listed in CVE-2021-27130.
  • Apply available patches — Visit vendor advisories for the latest security updates.
  • Monitor for exploitation — Check your SIEM/IDS logs for related indicators.
  • Use Vulnios to continuously monitor your exposure to CVE-2021-27130 and similar vulnerabilities.

    References & Sources

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    Affected Products

    online_reviewer_system

    Sources

    criticalsqliauth-bypass

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