What is the CVSS score of CVE-2020-37051?

CVE-2020-37051 has a CVSS 3.1 base score of 8.2 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N. EPSS exploitation probability: 0.0%.

Which versions of PHP are affected by CVE-2020-37051?

A critical SQL injection vulnerability in our Online-Exam-System 2015 feedback form enables attackers to extract database password hashes without authentication.

Is there a public PoC exploit available for CVE-2020-37051?

Yes, a public proof-of-concept exploit is available for CVE-2020-37051. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2020-37051?

Within 24 hours: Disable the feedback form or restrict access to authenticated users only; notify system owners and initiate incident response protocols. Within 7 days: Deploy WAF rules to block SQL injection patterns in feedback parameters; conduct database audit for unauthorized access logs. Within 30 days: Evaluate system replacement or major version upgrade; implement input validation and parameterized queries; rotate all database credentials.

PHP CVE-2020-37051

HIGH

SQL Injection (CWE-89)

2026-01-30 disclosure@vulncheck.com

PHP SQLi Online Exam System Online Exam System

8.2

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.2 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 22:00 vuln.today

PoC Detected

Mar 12, 2026 - 18:49 vuln.today

Public exploit code

CVE Published

Jan 30, 2026 - 23:16 nvd

HIGH 8.2

DescriptionCVE.org

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.

AnalysisAI

Online-Exam-System 2015 contains a time-based blind SQL injection vulnerability in the feedback form that allows attackers to extract database password hashes. [CVSS 8.2 HIGH]

Technical ContextAI

Classified as CWE-89 (SQL Injection). Affects Online-Exam-System-. 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.

RemediationAI

Monitor vendor advisories for a patch. Use parameterized queries. Implement input validation. Restrict network access to the affected service where possible.