Description

The LearnPress – WordPress LMS Plugin plugin for WordPress is vulnerable to unauthorized deletion of quiz question answers due to a missing capability check in the delete_question_answer() function of the EditQuestionAjax class in all versions up to, and including, 4.3.2.8. The AbstractAjax::catch_lp_ajax() dispatcher verifies a wp_rest nonce but performs no current_user_can() check, and the QuestionAnswerModel::delete() method only validates minimum answer counts without checking user capabilities. This makes it possible for authenticated attackers, with Subscriber-level access and above, to delete answer options from any quiz question on the site.

Weaknesses 1

References 5

• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/learnpress/tags/4.3.2.7/inc/Ajax/AbstractAjax.php#L17
• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/learnpress/tags/4.3.2.7/inc/Ajax/EditQuestionAjax.php#L284
• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/learnpress/tags/4.3.2.7/inc/Models/Question/QuestionAnswerModel.php#L243
• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?old_path=/learnpress/tags/4.3.2.8&new_path=/learnpress/tags/4.3.3
• wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/fc4afb78-fca6-4cc2-8e64-4785d93055e6?source=cve

Remediation