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Vulnerability record · CVE-2020-37005 · published 29 January 2026

CVE-2020-37005: SQL injection vulnerability

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.

7.1 CVSS 4.0 High EPSS 0.31% · top 79.0% CWE-89 · SQL injection Deferred
7.1CVSS 4.0 base score
0.31%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

Description

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://web.archive.org/web/20190104104315/http://timeclock-software.net/
https://www.exploit-db.com/exploits/48874
https://www.vulncheck.com/advisories/timeclock-software-authenticated-time-based-sql-injection

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Source: NIST National Vulnerability Database (record CVE-2020-37005), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.