Access violation vulnerability in Multiline files upload for contact form 7 2.8.1

The “Multiline files upload” feature in the Contact Form 7 plugin for WordPress can be easily deactivated by anyone without proper permission. This can be done through a function called “mfcf7_zl_custom_handle_deactivation_plugin_form_submission()” in all versions up to 2.8.1. As a result, people with at least Subscriber-level access can deactivate the plugin and provide their own reason for doing so.

Detected in:

Multiline files upload for contact form 7 fixed vulnerable versions: >= * <= 2.8.1

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> from 2.2.8
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