Is CVE-2020-8493 in the CISA KEV catalog?

No. CVE-2020-8493 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-8493?

CVE-2020-8493 has a CVSS v3 base score of 4.8 (MEDIUM).

What is the EPSS score for CVE-2020-8493?

CVE-2020-8493 has an EPSS score of 1.49% (71th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-8493?

Upgrade web time and attendance to 4.0 or later.

CVE & CISA-KEV Catalog

CVE-2020-8493

MEDIUMEPSS 71th pctl

4.8

CVSS v3

NVD

Description

A stored XSS vulnerability in Kronos Web Time and Attendance (webTA) affects 3.8.x and later 3.x versions before 4.0 via multiple input fields (Login Message, Banner Message, and Password Instructions) of the com.threeis.webta.H261configMenu servlet via an authenticated administrator.

CWE-79Cross-Site Scripting (XSS)

How to fix

Remediation Available

web time and attendanceNVD

Affected:>= 3.8, < 4.0Fixed in:4.0CVE-2020-8493derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredHigh

User InteractionRequired

ScopeChanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

1.49%probability of exploitation in 30 days

71stpercentile

Elevated risk: more likely to be exploited than 71% of all known CVEs.

References

Exploit2

Vendor Advisory1

kronos.com

Related Vulnerabilities

Other CWE-79 (Cross-Site Scripting (XSS)) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-11022	Medium	6.9	99%	-	Fix
CVE-2019-3929	Critical	9.8	99%	KEV	Fix
CVE-2020-9496	Medium	6.1	99%	-	-
CVE-2023-28341	Medium	6.1	99%	-	Fix
CVE-2018-12998	Medium	6.1	98%	-	-
CVE-2025-4123	High	7.6	98%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.