LiveActive security incident?Get immediate response
CVE Record

CVE-2020-37051: Online-Exam-System 2015 - 'feedback' SQL Injection

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.

HighCVSS 8.8Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2020-37051 is a high-severity SQL injection in the 2015 Online-Exam-System feedback form. An unauthenticated remote attacker may extract database password hashes through time-based blind queries. Organizations using this old exam application should treat exposed instances as urgent review targets, but the provided sources do not show confirmed active exploitation.

Executive priority

Prioritize quickly if this application supports exams, stores user accounts, or is internet-facing. The business risk is credential exposure from a public web form. If the product is not deployed, no action is needed beyond documenting non-exposure.

Technical view

The issue is CWE-89 in Online-Exam-System 2015, affecting the feed.php feedback endpoint. The CVSS v4.0 score is 8.8 with network attack vector, low complexity, no privileges, and no user interaction. Public exploit material exists on Exploit-DB, and VulnCheck describes password-hash extraction via time-delay enumeration.

Likely exposure

Exposure is most likely where sunnygkp10 Online-Exam-System 2015 is internet-accessible or reachable by untrusted users. The supplied data lists only version 2015 and provides no CPEs, asset prevalence, or hosted-service indicators.

Exploitation context

A public Exploit-DB entry is referenced, so proof-of-concept exploit information exists. The CVE is not listed as KEV in the supplied bundle, and no cited source confirms active exploitation in the wild.

Researcher notes

Evidence is limited to the CVE record, VulnCheck advisory, software repository, and Exploit-DB reference. The affected scope is stated as Online-Exam-System 2015 only. No patch version, maintainer fix, or active exploitation evidence is provided in the supplied sources.

Mitigation direction

  • Identify whether Online-Exam-System 2015 is deployed, especially internet-facing instances.
  • Check the project repository and advisory sources for vendor guidance or updates.
  • Restrict or disable the feedback endpoint if it is not business-critical.
  • If maintaining the code, use parameterized queries and input validation for feedback handling.
  • Review database credentials and reset exposed user passwords if compromise is suspected.

Validation and detection

  • Inventory web applications for Online-Exam-System 2015 installations.
  • Confirm whether feed.php and the feedback form are reachable by unauthenticated users.
  • Review application logs for unusual feedback requests and timing-based probing patterns.
  • Assess the feedback code path for unsanitized database queries.
  • Verify any remediation by retesting safely in an authorized environment.
Prepared
Confidence
high
Sources
5

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-89: Database access and collection lookup

Injection into data stores can inform collection, data access, and exfiltration detection reviews. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
description · low confidence lookup

Credential and access behavior lookup

The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
description · low confidence lookup

Database behavior lookup

The CVE wording references database injection or access, so collection and exfiltration review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2020-37051 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
8.8 (4.0)
Known Exploited
No
Published

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
4Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
8.8CVSS 4.0HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:NPrimary CVE score

Vulnerability scoring details

Base CVSS 4.0 score

8.8High
CVSS 4.0 vector shape for CVE-2020-37051Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Attack Requirements
NonePresent
Privileges Required
NoneLowHigh
User Interaction
NonePassiveActive
VS Confidentiality
HighLowNone
VS Integrity
HighLowNone
VS Availability
HighLowNone
SS Confidentiality
HighLowNone
SS Integrity
HighLowNone
SS Availability
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
sunnygkp10Online-Exam-System2015Listed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-89 · source CWE mapping

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.