CVE-2020-37051Public exploitNetwork attack vector

Password-hash disclosure via unsanitized feedback input

Published Jan 30, 2026 · Updated Jan 30, 2026

SQL injection in Sunny Tiwari Online Exam System 2015 allows remote attackers to extract password hashes through the feedback form. The feed.php endpoint interpolates the raw POST feedback value into a mysqli INSERT statement without parameterization or escaping. No account or user interaction is required; the demonstrated timing oracle reads password hashes but does not establish code execution.

CVSS severity8.8
High
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SQL injection in Sunny Tiwari Online Exam System 2015 allows remote attackers to extract password hashes through the feedback form. The feed.php endpoint interpolates the raw POST feedback value into a mysqli INSERT statement without parameterization or escaping. No account or user interaction is required; the demonstrated timing oracle reads password hashes but does not establish code execution.

The record

CVE
CVE-2020-37051
Published
Jan 30, 2026
Updated
Jan 30, 2026
Vendor
Sunny Tiwari
Product
Online Exam System
Classifications
CWE-89, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 30, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 30, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2015

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Sunny Tiwari · Online Exam Systemversion=2015

Published CVSS scores

8.2VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
5.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
8.8VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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