The Wordpress GDPR Compliance plugin less than or equal to v1.4.2 allows unauthenticated users to set wordpress administration options by overwriting values within the database. The vulnerability is present in WordPress’s admin-ajax.php, which allows unauthorized users to trigger handlers and make configuration changes because of a failure to do capability checks when executing the save_setting internal action. WARNING: The module sets Wordpress configuration options without reading their current values and restoring them later.
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