What’s Vulnerable › Vulnerabilities

CVE-2020-8494

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-01-30 · updated 2026-06-17

Description

In Kronos Web Time and Attendance (webTA) 3.8.x and later 3.x versions before 4.0, the com.threeis.webta.H402editUser servlet allows an attacker with Timekeeper, Master Timekeeper, or HR Admin privileges to gain unauthorized administrative privileges within the application via the emp_id, userid, pw1, pw2, supervisor, and timekeeper parameters.

Affected products

• Kronos Web Time And Attendance: from 3.8 before 4.0 — fixed in 4.0

How to fix

Upgrade to a fixed version: Kronos Web Time And Attendance 4.0. Check the vendor advisory for mitigations.

References

• http://www.nolanbkennedy.com/post/privilege-escalation-2-in-kronos-web-time-and-attendance-webta
• https://www.kronos.com/products/kronos-webta
• http://www.nolanbkennedy.com/post/privilege-escalation-2-in-kronos-web-time-and-attendance-webta
• https://www.kronos.com/products/kronos-webta

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