Is CVE-2023-4620 in the CISA KEV catalog?

No. CVE-2023-4620 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-4620?

CVE-2023-4620 has a CVSS v3 base score of 6.1 (MEDIUM).

What is the EPSS score for CVE-2023-4620?

CVE-2023-4620 has an EPSS score of 0.47% (38th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-4620?

Upgrade booking calendar to 9.7.3.1 or later.

CVE & CISA-KEV Catalog

CVE-2023-4620

MEDIUM

6.1

CVSS v3

NVD

Description

The Booking Calendar WordPress plugin before 9.7.3.1 does not sanitize and escape some of its booking from data, allowing unauthenticated users to perform Stored Cross-Site Scripting attacks against administrators

How to fix

Remediation Available

booking calendarNVD

Affected:< 9.7.3.1Fixed in:9.7.3.1CVE-2023-4620derived 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 RequiredNone

User InteractionRequired

ScopeChanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

0.47%probability of exploitation in 30 days

38thpercentile

Low risk: more likely to be exploited than 38% of all known CVEs.

References

Exploit1

wpscan.com

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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 2025-05-02.