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Fencer Intel
high 7.5

CVE-2020-8494 json

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 att…

published 6y ago modified 4mo ago also EUVD-2020-29360

cvss
7.5
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.1%
EPSS 1.1% chance of exploitation in 30 days, percentile 66%
public exploits
0
none known

Summary

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.

Patch / fix

  • kronos web_time_and_attendance 4.0

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Exploit prediction

1.11% chance of exploitation in the next 30 days, higher than 66% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • nolanbkennedy.com http://www.nolanbkennedy.com/post/privilege-escalation-2-in-kronos-web-time-and-attendance-webta referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.0 7.5 CVSS:3.0/AC:H/AV:N/A:H/C:H/I:H/PR:L/S:U/UI:N
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA 3.0 7.5 CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.