CVE-2026-18496 (GCVE-0-2026-18496)
Vulnerability from cvelistv5 – Published: 2026-10-10 05:30 – Updated: 2026-10-11 16:55
VLAI
EPSS
VEX
Title
Booking Calendar <= 11.4.3 - Unauthenticated Sensitive Information Exposure in 'WPBC_FLEXTIMELINE_NAV' AJAX Action
Summary
The Booking Calendar plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 11.4.3 via the wpbc_is_show_popover_in_flex_timeline() function. This makes it possible for unauthenticated attackers to extract sensitive data including names, email addresses, and phone numbers of customers who have made bookings.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-11 16:41 UTC
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| wpdevelop | Booking Calendar |
Affected:
0 , ≤ 11.4.3
(semver)
|
guessed |
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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