How severe is CVE-2023-4620?

CVE-2023-4620 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2023-4620 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-4620?

CVE-2023-4620 affects Wpbookingcalendar Booking Calendar. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-4620?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-4620 published?

CVE-2023-4620 was published on 2023-10-16 and last updated on 2026-06-17.

CVE-2023-4620

CVE-2023-4620 is a medium-severity vulnerability in Wpbookingcalendar Booking Calendar with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
EPSS exploit prediction: 0% (38th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Wpbookingcalendar Booking Calendar
Published: 2023-10-16
Last modified: 2026-06-17

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

Frequently asked questions

What is CVE-2023-4620?: 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 severe is CVE-2023-4620?: CVE-2023-4620 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2023-4620 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-4620?: CVE-2023-4620 affects Wpbookingcalendar Booking Calendar. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-4620?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-4620 published?: CVE-2023-4620 was published on 2023-10-16 and last updated on 2026-06-17.

References

https://wpscan.com/vulnerability/084e9494-2f9e-4420-9bf7-78a1a41433d7

Affected products (1)

cpe:2.3:a:wpbookingcalendar:booking_calendar:*:*:*:*:*:wordpress:*:*

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