Plugins · booking-calendar · data as of 2026-11-04
Is Booking calendar, Appointment Booking System safe? Known vulnerabilities and latest version
- Status
- Closed 2026-07-31
- Known issues on record
- 16
- Unpatched in latest
- 0
What to do
- Replace it. A closed plugin gets no updates through WordPress, so any hole found from now on stays open.
- Deactivate and delete it once you have a replacement (Plugins → Deactivate → Delete). Deleting removes its files; deactivating alone leaves them on the server.
- If you ran a vulnerable version and something looks off (spam pages, strange admins, redirects), run the free scan, or have us clean it: Emergency Cleanup, $499.
With WP-CLI, once you have a replacement: wp plugin deactivate booking-calendar && wp plugin delete booking-calendar
Check your version
Known vulnerabilities
16 on record, newest first. “Affected” is the version range the source gives; “fixed in” is the version the source names, or (marked *) the first wordpress.org release after the last affected version. 16 record(s) do not state which versions are affected.
high 8.8 CVE-2026-14334 · published 2026-08-19
Cross-site scripting (XSS) in Booking calendar, Appointment Booking System (3.2.18 to 3.2.36)
- Affected
- 3.2.18 to 3.2.36
- Fixed in
- unknown
- Access needed (per CVSS)
- No login needed; someone on the site has to click a link or open a page
- Range from
- CVE record (the advisory publisher) · score by CISA ADP
Details from the advisory
The Booking calendar, Appointment Booking System WordPress plugin through 3.2.36 does not properly sanitize uploaded SVG files, allowing unauthenticated attackers to upload a file that bypasses the Booking calendar, Appointment Booking System WordPress plugin through 3.2.36's script-stripping and executes arbitrary JavaScript when the SVG is opened, including in the session of an administrator who reviews the submitted booking.
medium 6.5 CVE-2026-73395 · published 2026-08-18
Missing authorization check in Booking calendar, Appointment Booking System (3.2.36 and older)
- Affected
- 3.2.36 and older
- Fixed in
- unknown
- Access needed (per CVSS)
- No login needed
- Range from
- CVE record (the advisory publisher) · score by Patchstack
Details from the advisory
Unauthenticated Insecure Direct Object References (IDOR) in Booking calendar, Appointment Booking System <= 3.2.36 versions.
medium 5.3 CVE-2026-8840 · published 2026-08-15
Missing authorization check in Booking calendar, Appointment Booking System (3.2.36 and older)
- Affected
- 3.2.36 and older
- Fixed in
- unknown
- Access needed (per CVSS)
- No login needed
- Range from
- CVE record (the advisory publisher) · score by Wordfence
Details from the advisory
The Booking calendar, Appointment Booking System plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 3.2.36. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to mark arbitrary reservations as paid or completed, cancel legitimate payments, auto-approve reservations, and trigger transactional booking emails by writing attacker-supplied payment status and transaction data directly into the payments table. The auto-approval of reservations is only triggered when the 'enable_psuccess_approval' site option is enabled, but payment status manipulation and email dispatch are exploitable regardless of that setting.
medium 5.3 CVE-2026-57778 · published 2026-07-13
Missing authorization check in Booking calendar, Appointment Booking System (3.2.36 and older)
- Affected
- 3.2.36 and older
- Fixed in
- unknown
- Access needed (per CVSS)
- No login needed
- Range from
- CVE record (the advisory publisher) · score by Patchstack
Details from the advisory
Missing Authorization vulnerability in wpdevart Booking calendar, Appointment Booking System booking-calendar allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Booking calendar, Appointment Booking System: from n/a through <= 3.2.36.
medium 5.9 CVE-2026-15289 · published 2026-07-10
SQL injection in Booking calendar, Appointment Booking System (3.2.17 and older)
- Affected
- 3.2.17 and older
- Fixed in
- unknown
- Access needed (per CVSS)
- No login needed
- Range from
- CVE record (the advisory publisher) · score by Wordfence
Details from the advisory
The Booking calendar, Appointment Booking System plugin for WordPress is vulnerable to time-based SQL Injection via the ‘wpdevart_id’ parameter in all versions up to, and including, 3.2.17 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. In order to exploit the vulnerability, the Pro version of the plugin must be installed and activated, with the 'Delete previous dates' option checked.
high 7.1 CVE-2026-25435 · published 2026-03-25
Stored cross-site scripting (XSS) in Booking calendar, Appointment Booking System (3.2.36 and older)
- Affected
- 3.2.36 and older
- Fixed in
- unknown
- Access needed (per CVSS)
- No login needed; someone on the site has to click a link or open a page
- Range from
- CVE record (the advisory publisher) · score by Patchstack
Details from the advisory
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in wpdevart Booking calendar, Appointment Booking System booking-calendar allows Stored XSS.This issue affects Booking calendar, Appointment Booking System: from n/a through <= 3.2.36.
medium 5.3 CVE-2025-67574 · published 2025-12-09
Missing authorization check in Booking calendar, Appointment Booking System (3.2.30 and older)
- Affected
- 3.2.30 and older
- Fixed in
- 3.2.31
- Access needed (per CVSS)
- No login needed
- Range from
- CVE record (the advisory publisher) · score by Patchstack
Details from the advisory
Missing Authorization vulnerability in wpdevart Booking calendar, Appointment Booking System booking-calendar allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Booking calendar, Appointment Booking System: from n/a through <= 3.2.30.
medium 6.1 CVE-2024-12077 · published 2025-01-07
Reflected cross-site scripting (XSS) in Booking calendar, Appointment Booking System (3.2.19 and older)
- Affected
- 3.2.19 and older
- Fixed in
- unknown
- Access needed (per CVSS)
- No login needed; someone on the site has to click a link or open a page
- Range from
- CVE record (the advisory publisher) · score by Wordfence
Details from the advisory
The Booking Calendar and Booking Calendar Pro plugins for WordPress are vulnerable to Reflected Cross-Site Scripting via the ‘calendar_id’ parameter in all versions up to, and including, 3.2.19 and 11.2.19 respectively, due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
NVD CVE-2024-12077Wordfence advisoryCode change (fix)Plugin source
medium 6.5 CVE-2024-10856 · published 2024-12-24
SQL injection in Booking calendar, Appointment Booking System (3.2.19 and older)
- Affected
- 3.2.19 and older
- Fixed in
- unknown
- Access needed (per CVSS)
- Needs a low-level account (e.g. subscriber)
- Range from
- CVE record (the advisory publisher) · score by Wordfence
Details from the advisory
The Booking Calendar WpDevArt plugin is vulnerable to time-based, blind SQL injection via the `id` parameter in the “wpdevart_booking_calendar” shortcode in versions up to, and including, 3.2.19 due to insufficient escaping on the user-supplied parameter and lack of sufficient preparation on the existing SQL query. The vulnerability requires the “delete_prev_date” theme option being enabled. This makes it possible for authenticated attackers, with contributor-level access or above, to append additional SQL queries into already existing query that can be used to extract sensitive information such as passwords from the database.
NVD CVE-2024-10856Wordfence advisoryCode change (fix)Plugin source
high 8.8 CVE-2023-24407 · published 2024-12-09
Missing authorization check in Booking calendar, Appointment Booking System (3.2.3 and older)
- Affected
- 3.2.3 and older
- Fixed in
- 3.2.4
- Access needed (per CVSS)
- Needs a low-level account (e.g. subscriber)
- Range from
- CVE record (the advisory publisher) · score by NVD
Details from the advisory
Missing Authorization vulnerability in WpDevArt Booking calendar, Appointment Booking System allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Booking calendar, Appointment Booking System: from n/a through 3.2.3.
high 7.2 CVE-2024-9504 · published 2024-11-26
Stored cross-site scripting (XSS) in Booking calendar, Appointment Booking System (3.2.15 and older)
- Affected
- 3.2.15 and older
- Fixed in
- unknown
- Access needed (per CVSS)
- No login needed
- Range from
- CVE record (the advisory publisher) · score by Wordfence
Details from the advisory
The Booking calendar, Appointment Booking System plugin for WordPress is vulnerable to Stored Cross-Site Scripting via SVG File uploads in all versions up to, and including, 3.2.15 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses the SVG file.
NVD CVE-2024-9504Wordfence advisoryCode change (fix)hacked.be
critical 9.8 CVE-2023-24373 · published 2024-06-03
Security issue in Booking calendar, Appointment Booking System (3.2.3 and older)
- Affected
- 3.2.3 and older
- Fixed in
- 3.2.4
- Access needed (per CVSS)
- No login needed
- Range from
- CVE record (the advisory publisher) · score by NVD
Details from the advisory
External Control of Assumed-Immutable Web Parameter vulnerability in WpDevArt Booking calendar, Appointment Booking System allows Manipulating Hidden Fields.This issue affects Booking calendar, Appointment Booking System: from n/a through 3.2.3.
critical 9.8 CVE-2022-47428 · published 2023-11-06
SQL injection in Booking calendar, Appointment Booking System (3.2.7 and older)
- Affected
- 3.2.7 and older
- Fixed in
- 3.2.8
- Access needed (per CVSS)
- No login needed
- Range from
- CVE record (the advisory publisher) · score by NVD
Details from the advisory
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in WpDevArt Booking calendar, Appointment Booking System allows SQL Injection.This issue affects Booking calendar, Appointment Booking System: from n/a through 3.2.7.
medium 5.4 CVE-2022-47438 · published 2023-03-29
Stored cross-site scripting (XSS) in Booking calendar, Appointment Booking System (3.2.3 and older)
- Affected
- 3.2.3 and older
- Fixed in
- 3.2.4
- Access needed (per CVSS)
- Needs a low-level account (e.g. subscriber); someone on the site has to click a link or open a page
- Range from
- CVE record (the advisory publisher) · score by NVD
Details from the advisory
Auth. (editor+) Stored Cross-Site Scripting (XSS) vulnerability in WpDevArt Booking calendar, Appointment Booking System plugin <= 3.2.3 versions.
medium 5.4 CVE-2023-24388 · published 2023-02-17
Cross-site request forgery (CSRF) in Booking calendar, Appointment Booking System (3.2.3 and older)
- Affected
- 3.2.3 and older
- Fixed in
- 3.2.4
- Access needed (per CVSS)
- No login needed; someone on the site has to click a link or open a page
- Range from
- CVE record (the advisory publisher) · score by NVD
Details from the advisory
Cross-Site Request Forgery (CSRF) vulnerability in WpDevArt Booking calendar, Appointment Booking System plugin <= 3.2.3 versions affects plugin forms actions (create, duplicate, edit, delete).
critical 9.8 CVE-2022-3982 · published 2022-12-12
Remote code execution in Booking calendar, Appointment Booking System (older than 3.2.2)
- Affected
- older than 3.2.2
- Fixed in
- 3.2.2
- Access needed (per CVSS)
- No login needed
- Range from
- CVE record (the advisory publisher) · score by NVD
Details from the advisory
The Booking calendar, Appointment Booking System WordPress plugin before 3.2.2 does not validate uploaded files, which could allow unauthenticated users to upload arbitrary files, such as PHP and achieve RCE
Recent activity
- 2026-07-31 — closed on wordpress.org (Security Issue).
- 2026-08-19 — Cross-site scripting (XSS) disclosed (CVE-2026-14334), fix version not stated.
- 2026-08-18 — Missing authorization check disclosed (CVE-2026-73395), fix version not stated.
- 2026-08-15 — Missing authorization check disclosed (CVE-2026-8840), fix version not stated.
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Browse vulnerabilities
Types found in this plugin: Cross-site scripting (XSS) (5) · Missing authorization (5) · SQL injection (3) · Cross-site request forgery (CSRF) (1) · Remote code execution (1)
Where this data comes from
- Version, last update, installs, closure: wordpress.org/plugins/booking-calendar (Plugins API), fetched 2026-11-04.
- Vulnerabilities: NIST National Vulnerability Database (NVD), checked 2026-11-04. This product uses data from the NVD API but is not endorsed or certified by the NVD.
- Each record links to its CVE page and to the original advisory (Wordfence, Patchstack or WPScan) where there is one. We only list a CVE here when its references or its advisory name this exact plugin, so a few real issues may be missing; none should be about a different plugin. Spot an error? Email Daniel.
Badge for your site or docs (states facts with a date, not a verdict):
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