How severe is CVE-2020-8495?

CVE-2020-8495 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-8495 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-8495?

CVE-2020-8495 affects Kronos Web Time And Attendance. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-8495?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-8495 published?

CVE-2020-8495 was published on 2020-01-30 and last updated on 2026-06-17.

CVE-2020-8495

CVE-2020-8495 is a high-severity vulnerability in Kronos Web Time And Attendance with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-862.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 6.0
EPSS exploit prediction: 3% (86th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-862
Affected product: Kronos Web Time And Attendance
Published: 2020-01-30
Last modified: 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.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.

Frequently asked questions

What is 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 application via the delegate, delegateRole, and delegatorUserId parameters.
How severe is CVE-2020-8495?: CVE-2020-8495 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-8495 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-8495?: CVE-2020-8495 affects Kronos Web Time And Attendance. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-8495?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-8495 published?: CVE-2020-8495 was published on 2020-01-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:kronos:web_time_and_attendance:*:*:*:*:*:*:*:*

More vulnerabilities in Kronos Web Time And Attendance

CVE-2020-35604 — Critical (CVSS 9.8): An XXE attack can occur in Kronos WebTA 5.0.4 when SAML is used.
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CVE-2020-14982 — Medium (CVSS 6.5): A Blind SQL Injection vulnerability in Kronos WebTA 3.8.x and later before 4.0 (affecting the…
CVE-2020-8496 — Medium (CVSS 4.8): In Kronos Web Time and Attendance (webTA) 4.1.x and later 4.x versions before 5.0, there is a Stored XSS vulnerability…
CVE-2020-8493 — Medium (CVSS 4.8): A stored XSS vulnerability in Kronos Web Time and Attendance (webTA) affects 3.8.x and later 3.x versions before 4.0…

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