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CVE-2026-15001

HIGH 8.8 CVSS 3.1
Published
August 15, 2026
Last modified
August 20, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-269
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

The bLoyal: Loyalty & Promotions by bLoyal plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 3.1.611.78. This is due to the AJAX actions `save_bloyal_configuration_data` and `save_bloyal_accesskeyverification_data` being registered without any capability or nonce checks, and the `bloyal_customer_auto_login` function unconditionally trusting the `Customer.ExternalId` value returned by whichever API URL is stored in the plugin's options. This makes it possible for authenticated attackers, with Subscriber-level access and above, to overwrite the plugin's bLoyal Loyalty Engine API URL (`bloyal_custom_loyaltyengine_api_url`) and the `is_bloyal_custom_api_url` flag via the unprotected AJAX actions, then trigger the unauthenticated `/cart` REST route to cause `bloyal_customer_auto_login` to fetch customer data from an attacker-controlled endpoint and call `wp_set_auth_cookie()` with an attacker-supplied `Customer.ExternalId`, thereby authenticating as any WordPress user including the site Administrator.

Affected WordPress components

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • connectordev bLoyal: Loyalty & Promotions by bLoyal — Up to and including 3.1.611.78

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/bloyal/tags/3.1.611.78/app/controller/class-bloyalcontroller.php#L2429
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/bloyal/tags/3.1.611.78/app/controller/class-bloyalcontroller.php#L2470
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/bloyal/tags/3.1.611.78/app/controller/class-bloyalcontroller.php#L2512
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/bloyal/tags/3.1.611.78/app/controller/class-bloyalcontroller.php#L421
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/bloyal/tags/3.1.611.78/app/controller/class-bloyalcontroller.php#L494
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/bloyal/tags/3.1.611.78/app/controller/class-bloyalcontroller.php#L806
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/bloyal/tags/3.1.611.78/bloyal.php#L1196
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/bloyal/tags/3.1.611.78/bloyal.php#L1553
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/bloyal/tags/3.1.611.78/bloyal.php#L1596
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/ba4b58ad-97b3-482a-bf24-1fa85d6ef93d?source=cve
  • nvd.nist.gov Official NVD record