CVE-2020-37051

HIGH 8.2

Online-Exam-System 2015 - 'feedback' SQL Injection

CVSS Score

8.2

EPSS Score

0.0%

EPSS Percentile

0th

Online-Exam-System 2015 contains a time-based blind SQL injection vulnerability in the feedback form that allows attackers to extract database password hashes. Attackers can exploit the 'feed.php' endpoint by crafting malicious payload requests that use time delays to systematically enumerate user password characters.

CWE	CWE-89
Vendor	sunnygkp10
Product	online-exam-system
Published	Jan 30, 2026
Last Updated	Mar 5, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

Low

Availability

None

Affected Versions

sunnygkp10 / Online-Exam-System

2015

References

NVD ↗ CVE.org ↗ EPSS Data ↗

exploit-db.com: https://www.exploit-db.com/exploits/48560 github.com: https://github.com/sunnygkp10/Online-Exam-System-.git vulncheck.com: https://www.vulncheck.com/advisories/online-exam-system-feedback-sql-injection

Credits

Gus Ralph