How severe is CVE-2023-36384?

CVE-2023-36384 has a CVSS 3.x base score of 7.1, rated high 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 low.

Is CVE-2023-36384 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-36384?

CVE-2023-36384 affects Booking Calendar Project Booking Calendar. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-36384?

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-2023-36384 published?

CVE-2023-36384 was published on 2023-07-18 and last updated on 2026-06-17.

CVE-2023-36384

CVE-2023-36384 is a high-severity vulnerability in Booking Calendar Project Booking Calendar with a CVSS 3.x base score of 7.1. 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-79.

Key facts

Severity: High (CVSS 3.x base score 7.1)
EPSS exploit prediction: 0% (27th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Booking Calendar Project Booking Calendar
Published: 2023-07-18
Last modified: 2026-06-17

Description

Unauth. Reflected Cross-Site Scripting (XSS) vulnerability in CodePeople Booking Calendar Contact Form plugin <= 1.2.40 versions.

Frequently asked questions

What is CVE-2023-36384?: Unauth. Reflected Cross-Site Scripting (XSS) vulnerability in CodePeople Booking Calendar Contact Form plugin <= 1.2.40 versions.
How severe is CVE-2023-36384?: CVE-2023-36384 has a CVSS 3.x base score of 7.1, rated high 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 low.
Is CVE-2023-36384 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-36384?: CVE-2023-36384 affects Booking Calendar Project Booking Calendar. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-36384?: 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-2023-36384 published?: CVE-2023-36384 was published on 2023-07-18 and last updated on 2026-06-17.

References

https://patchstack.com/database/vulnerability/booking-calendar-contact-form/wordpress-booking-calendar-contact-form-plugin-1-2-40-cross-site-scripting-xss?_s_id=cve

Affected products (1)

cpe:2.3:a:booking_calendar_project:booking_calendar:*:*:*:*:*:wordpress:*:*

More vulnerabilities in Booking Calendar Project Booking Calendar

CVE-2022-1463 — High (CVSS 8.8): The Booking Calendar plugin for WordPress is vulnerable to PHP Object Injection via the [bookingflextimeline] shortcode…
CVE-2018-20556 — High (CVSS 8.8): SQL injection vulnerability in Booking Calendar plugin 8.4.3 for WordPress allows remote attackers to execute arbitrary…
CVE-2018-5673 — High (CVSS 8.8): An issue was discovered in the booking-calendar plugin 2.1.7 for WordPress. CSRF exists via wp-admin/admin.php.
CVE-2021-25040 — Medium (CVSS 6.1): The Booking Calendar WordPress plugin before 8.9.2 does not sanitise and escape the booking_type parameter before…
CVE-2017-2151 — Medium (CVSS 6.1): Cross-site scripting vulnerability in Booking Calendar version 7.1 and earlier allows remote attackers to inject…
CVE-2017-2150 — Medium (CVSS 5.3): Directory traversal vulnerability in Booking Calendar version 7.0 and earlier allows remote attackers to read arbitrary…

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