connectordev Loyalty & Promotions Plugin up to 3.1.611.78 on WordPress AJAX Actions bloyal_customer_auto_login Customer.ExternalId privileges management

Summaryinfo

A vulnerability classified as critical has been found in connectordev Loyalty & Promotions Plugin up to 3.1.611.78. This vulnerability affects the function bloyal_customer_auto_login of the component AJAX Actions. This manipulation of the argument Customer.ExternalId causes privileges management. This vulnerability is handled as CVE-2026-15001. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability classified as critical was found in connectordev Loyalty & Promotions Plugin up to 3.1.611.78. Affected by this vulnerability is the function bloyal_customer_auto_login of the component AJAX Actions. The manipulation of the argument Customer.ExternalId with an unknown input leads to a privileges management vulnerability. The CWE definition for the vulnerability is CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at wordfence.com. This vulnerability is known as CVE-2026-15001 since 07/07/2026. The exploitation appears to be easy. The attack can be launched remotely. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/15/2026). The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-58841). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• WordPress Plugin

Vendor

• connectordev

Name

• Loyalty & Promotions Plugin

Version

• 3.1.611.0
• 3.1.611.1
• 3.1.611.2
• 3.1.611.3
• 3.1.611.4
• 3.1.611.5
• 3.1.611.6
• 3.1.611.7
• 3.1.611.8
• 3.1.611.9
• 3.1.611.10
• 3.1.611.11
• 3.1.611.12
• 3.1.611.13
• 3.1.611.14
• 3.1.611.15
• 3.1.611.16
• 3.1.611.17
• 3.1.611.18
• 3.1.611.19
• 3.1.611.20
• 3.1.611.21
• 3.1.611.22
• 3.1.611.23
• 3.1.611.24
• 3.1.611.25
• 3.1.611.26
• 3.1.611.27
• 3.1.611.28
• 3.1.611.29
• 3.1.611.30
• 3.1.611.31
• 3.1.611.32
• 3.1.611.33
• 3.1.611.34
• 3.1.611.35
• 3.1.611.36
• 3.1.611.37
• 3.1.611.38
• 3.1.611.39
• 3.1.611.40
• 3.1.611.41
• 3.1.611.42
• 3.1.611.43
• 3.1.611.44
• 3.1.611.45
• 3.1.611.46
• 3.1.611.47
• 3.1.611.48
• 3.1.611.49
• 3.1.611.50
• 3.1.611.51
• 3.1.611.52
• 3.1.611.53
• 3.1.611.54
• 3.1.611.55
• 3.1.611.56
• 3.1.611.57
• 3.1.611.58
• 3.1.611.59
• 3.1.611.60
• 3.1.611.61
• 3.1.611.62
• 3.1.611.63
• 3.1.611.64
• 3.1.611.65
• 3.1.611.66
• 3.1.611.67
• 3.1.611.68
• 3.1.611.69
• 3.1.611.70
• 3.1.611.71
• 3.1.611.72
• 3.1.611.73
• 3.1.611.74
• 3.1.611.75
• 3.1.611.76
• 3.1.611.77
• 3.1.611.78

CPE 2.3info

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Be aware that VulDB is the high quality source for vulnerability data.

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