Executive Summary

Remote Code Execution (RCE) vulnerability exists in Sourcecodester Online Reviewer System 1.0 by uploading a maliciously crafted PHP file that bypasses the image upload filters..

Why It Matters

CVE-2021-41646 is rated CRITICAL severity, requiring immediate attention from security teams.

CVSS Base Score: 9.8/10

EPSS (Exploit Prediction): 3.7% 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-2021-41646.

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-2021-41646 and similar vulnerabilities.

References & Sources

https://www.exploit-db.com/exploits/50319

https://www.nu11secur1ty.com/2021/12/cve-2021-41646.html

https://www.exploit-db.com/exploits/50319

https://www.nu11secur1ty.com/2021/12/cve-2021-41646.html

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Affected Products

online_reviewer_system

Sources

NVD / NIST

criticalrce

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Critical Vulnerability: CVE-2021-41646 — janobe — online_reviewer_system