CVE-2020-37005

7.1 highEPSS 0.3%

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.

Severity

CVSS 4.0

7.1 high

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

CVSS 3.1

7.1 high

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

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 24% of CVEs (scores of 2026-10-31)
CWE: CWE-89
Published: 2026-01-29
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

References

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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