CVE-2026-103423
Booking Package <= 1.7.29 - Missing Authorization to Unauthenticated Sensitive Information Disclosure via 'mode=sendBooking' with nonexistent 'timeKey' and 'public=0'
Description
The Booking Package plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 1.7.29 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 retrieve personally identifiable information for every booked customer stored in the booking_package_booked_customers table, including names, email addresses, phone numbers, physical addresses, and cancellation tokens. The nonce nominally protecting the endpoint is a public CSRF token emitted in the localized booking_package JavaScript object on any page rendering the [booking_package] shortcode or widget, making it trivially harvestable by unauthenticated visitors and providing no effective authentication barrier.
INFO
Published Date :
Oct. 14, 2026, 2:16 a.m.
Last Modified :
Oct. 14, 2026, 2:16 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-103423
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | MITRE-CVE | ||||
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update the Booking Package plugin to the latest version.
- Verify plugin uses proper authorization checks.
- Restrict access to booking data.
- Monitor for unauthorized access.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-103423.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-103423 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-103423
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-103423 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-103423 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Oct. 14, 2026
Action Type Old Value New Value Added Description The Booking Package plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 1.7.29 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 retrieve personally identifiable information for every booked customer stored in the booking_package_booked_customers table, including names, email addresses, phone numbers, physical addresses, and cancellation tokens. The nonce nominally protecting the endpoint is a public CSRF token emitted in the localized booking_package JavaScript object on any page rendering the [booking_package] shortcode or widget, making it trivially harvestable by unauthenticated visitors and providing no effective authentication barrier. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Added CWE CWE-862 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/103xxx/CVE-2026-103423.json">CVE-2026-103423</a> Added Reference https://plugins.trac.wordpress.org/browser/booking-package/tags/1.7.29/index.php#L241 Added Reference https://plugins.trac.wordpress.org/browser/booking-package/tags/1.7.29/index.php#L4383 Added Reference https://plugins.trac.wordpress.org/browser/booking-package/tags/1.7.29/lib/Schedule.php#L10030 Added Reference https://plugins.trac.wordpress.org/browser/booking-package/tags/1.7.29/lib/Schedule.php#L6611 Added Reference https://plugins.trac.wordpress.org/browser/booking-package/tags/1.7.29/lib/Schedule.php#L7087 Added Reference https://plugins.trac.wordpress.org/changeset/3728015/booking-package/trunk/lib/Schedule.php Added Reference https://www.wordfence.com/threat-intel/vulnerabilities/id/10063035-5f91-4dbe-b559-ea5be50d6950?source=cve