{"id":"CVE-2026-18496","title":"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","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 a…","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","cwe":["CWE-200"],"published":"2026-10-10","updated":"2026-10-13","sourceUpdated":"2026-10-13T13:30:21.620","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-18496","references":[{"url":"https://plugins.trac.wordpress.org/changeset/3633943/booking","label":"security@wordfence.com"},{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/1ebfb030-c9b7-477a-8fe3-78e97da6bea9?source=cve","label":"security@wordfence.com"}],"tags":["nvd","cve.org"],"epss":0.00214,"epssPercentile":0.11692,"ingestedAt":"2026-10-10T06:24:42.868Z","vendor":"wpdevelop","product":"Booking Calendar","affected":["booking_calendar <= 11.4.3"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-11T16:41:38.015892Z"},"slug":"CVE-2026-18496","body":"## Overview\n\nThe 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}