CVE-2020-8495

Name: CVE-2020-8495
Creator: NVD / NIST
Published: 2020-01-30T22:15:10.547+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 3.14%

Last modified Jun 17, 2026

CVE-2020-8495 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. In Kronos Web Time and Attendance (webTA) 3.8.x and later 3.x versions before 4.0, the com.threeis.webta.H491delegate servlet allows an attacker with Timekeeper or Supervisor privileges to gain unauthorized administrative privileges within the application via the delegate, delegateRole, and delegatorUserId parameters.. EPSS estimates a 3.14% chance of exploitation in the next 30 days.

Description

In Kronos Web Time and Attendance (webTA) 3.8.x and later 3.x versions before 4.0, the com.threeis.webta.H491delegate servlet allows an attacker with Timekeeper or Supervisor privileges to gain unauthorized administrative privileges within the application via the delegate, delegateRole, and delegatorUserId parameters.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

3.14%

86.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-862

Affected Software

Vendor	Product	Versions
Kronos	Web Time And Attendance	>= 3.8, < 4.0

References

http://packetstormsecurity.com/files/156215/Kronos-WebTA-4.0-Privilege-Escalation-Cross-Site-Scripting.htmlExploit, Third Party Advisory
http://www.nolanbkennedy.com/post/privilege-escalation-in-kronos-web-time-and-attendance-webtaExploit, Third Party Advisory
https://www.kronos.com/products/kronos-webtaProduct, Vendor Advisory
http://packetstormsecurity.com/files/156215/Kronos-WebTA-4.0-Privilege-Escalation-Cross-Site-Scripting.htmlExploit, Third Party Advisory
http://www.nolanbkennedy.com/post/privilege-escalation-in-kronos-web-time-and-attendance-webtaExploit, Third Party Advisory
https://www.kronos.com/products/kronos-webtaProduct, Vendor Advisory

Timeline

Published: Jan 30, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-8495?

How severe is CVE-2020-8495?

CVE-2020-8495 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 3.14% probability of exploitation in the next 30 days.

How do I fix CVE-2020-8495?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-8495?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST