CVE-2020-37005

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 v4.0

7.1 HIGHCVSS: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:X/V:X/RE:X/U:X

CVSS v3.1

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

EPSS

0.27% chance of exploitation in the next 30 days, 19th percentile

Published

2026-01-29

Updated

2026-04-07

Proof-of-concept exploits (1)

• https://www.exploit-db.com/exploits/48874

References

• CVE Record
• NVD entry

Related

• CVE-2020-37004
• CVE-2020-37006
• CVE-2020-37003
• CVE-2020-37007
• CVE-2020-37002
• CVE-2020-37008