What is the CVSS score of CVE-2020-37005?

CVE-2020-37005 has a CVSS 3.1 base score of 7.1 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N. EPSS exploitation probability: 0.0%.

Which versions of PHP are affected by CVE-2020-37005?

TimeClock Software 1.01 contains a SQL injection vulnerability that allows authenticated users to enumerate valid usernames, potentially enabling account targeting and credential attacks.

Is there a public PoC exploit available for CVE-2020-37005?

Yes, a public proof-of-concept exploit is available for CVE-2020-37005. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2020-37005?

Within 24 hours: Identify all systems running TimeClock 1.01 and restrict access to trusted networks only; document current user accounts. Within 7 days: Implement input validation and WAF rules to block SQL metacharacters in the 'notes' parameter; review access logs for exploitation attempts. Within 30 days: Evaluate migration to alternative time-tracking solutions or contact vendor for patched version availability; conduct security assessment of TimeClock deployment.

PHP CVE-2020-37005

HIGH

SQL Injection (CWE-89)

2026-01-29 disclosure@vulncheck.com

PHP SQLi

7.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.1 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 22:00 vuln.today

PoC Detected

Jan 29, 2026 - 16:31 vuln.today

Public exploit code

CVE Published

Jan 29, 2026 - 15:16 nvd

HIGH 7.1

DescriptionCVE.org

TimeClock Software 1.01 contains an authenticated time-based SQL injection vulnerability that allows attackers to enumerate valid usernames by manipulating the 'notes' parameter. Attackers can inject conditional time delays in the add_entry.php endpoint to determine user existence by measuring response time differences.

AnalysisAI

TimeClock Software 1.01 contains an authenticated time-based SQL injection vulnerability that allows attackers to enumerate valid usernames by manipulating the 'notes' parameter. [CVSS 7.1 HIGH]

Technical ContextAI

Classified as CWE-89 (SQL Injection). TimeClock Software 1.01 contains an authenticated time-based SQL injection vulnerability that allows attackers to enumerate valid usernames by manipulating the 'notes' parameter. Attackers can inject conditional time delays in the add_entry.php endpoint to determine user existence by measuring response time differences.

Affected ProductsAI

Component: add_entry.php.

RemediationAI

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