HOMEVULNERABILITIESCVE-2020-8494
HIGH

CVE-2020-8494

NVD-CWE-noinfoPublished: January 30, 2020· Updated: Jun 17, 2026

8.8
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2020-8494 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

kronos1 product(s)
web time and attendance
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://www.nolanbkennedy.com/post/privilege-escalation-2-in-kronos-web-time-and-attendance-webta
ADVISORYhttps://www.kronos.com/products/kronos-webta
ADVISORYhttp://www.nolanbkennedy.com/post/privilege-escalation-2-in-kronos-web-time-and-attendance-webta
ADVISORYhttps://www.kronos.com/products/kronos-webta

All References (4)

→
http://www.nolanbkennedy.com/post/privilege-escalation-2-in-kronos-web-time-and-attendance-webtaExploit · Third Party Advisory
→
https://www.kronos.com/products/kronos-webtaProduct · Vendor Advisory
→
http://www.nolanbkennedy.com/post/privilege-escalation-2-in-kronos-web-time-and-attendance-webtaExploit · Third Party Advisory
→
https://www.kronos.com/products/kronos-webtaProduct · Vendor Advisory

Quick Facts

CVE IDCVE-2020-8494
CVSS Score8.8 / 10
SeverityHIGH
WeaknessNVD-CWE-noinfo
CISA KEVNo
Affected1 vendor(s)
PublishedJan 30, 2020

Related CVEs (NVD-CWE-noinfo)

CVE-2015-5895
10.0
CVE-2015-6787
10.0
CVE-2008-4873
10.0
CVE-2022-37968
10.0
CVE-2014-2624
10.0
CVE-2006-3698
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2020-8494 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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