CVE-2020-8495
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…
Does this matter?
A public exploit is published in Exploit-DB and the impact is high, while EPSS rates exploitation at 3.1%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use.
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 3.14% probability · 88th percentile
- Public exploits
- 1 in Exploit-DB · first 5 February 2020
- CISA KEV
- Not listed
- Weakness
- CWE-862
- Affected
- kronos/web time and attendance
- Source
- cve@mitre.org
EPSS 3.1% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.