CourseCure Courses Plugin up to 1.5.1 on WordPress ajax_save_settings privileges management

Summaryinfo

A vulnerability was found in CourseCure Courses Plugin up to 1.5.1. It has been declared as critical. Affected by this issue is the function ajax_save_settings. Such manipulation leads to privileges management. This vulnerability is documented as CVE-2026-15309. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in CourseCure Courses Plugin up to 1.5.1 and classified as critical. Affected by this issue is the function ajax_save_settings. The manipulation with an unknown input leads to a privileges management vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

The CourseCure Courses plugin for WordPress is vulnerable to Privilege Escalation in versions up to, and including, 1.5.1. This is due to a missing capability check in the ajax_save_settings() function, which accepts arbitrary POST parameters and calls update_option() with attacker-controlled keys and values without any authorization verification. This makes it possible for authenticated attackers, with subscriber-level access and above, to elevate their privileges to administrator by setting the default_role WordPress option to 'administrator' and users_can_register to '1', then registering a new account that is automatically granted full administrator access.

The advisory is shared for download at wordfence.com. This vulnerability is handled as CVE-2026-15309 since 07/09/2026. The exploitation is known to be easy. The attack may be launched remotely. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 11/12/2026). The MITRE ATT&CK project declares the attack technique as T1068.

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

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• WordPress Plugin

Name

• CourseCure Courses Plugin

Version

• 1.5.0
• 1.5.1

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CPE 2.2info

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Once again VulDB remains the best source for vulnerability data.

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