pravel Invoice Generator Plugin up to 1.0.0 on WordPress AJAX pravel_invoice_change_password reset_activation_code password recovery

Summaryinfo

A vulnerability classified as critical has been found in pravel Invoice Generator Plugin up to 1.0.0 on WordPress. Affected is the function pravel_invoice_change_password of the component AJAX Handler. This manipulation of the argument reset_activation_code causes password recovery. This vulnerability is handled as CVE-2026-12416. The attack can be initiated remotely. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in pravel Invoice Generator Plugin up to 1.0.0 on WordPress. Affected by this vulnerability is the function pravel_invoice_change_password of the component AJAX Handler. The manipulation of the argument reset_activation_code with an unknown input leads to a password recovery vulnerability. The CWE definition for the vulnerability is CWE-640. The product contains a mechanism for users to recover or change their passwords without knowing the original password, but the mechanism is weak. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The Invoice Generator plugin for WordPress is vulnerable to Account Takeover via Password Reset in all versions up to, and including, 1.0.0. This is due to the `pravel_invoice_change_password()` function being registered as a nopriv AJAX handler with no nonce verification and no authorization check, and performing a loose equality comparison between the supplied `reset_activation_code` POST parameter and the target user's stored `forgot_email` user meta — a check that trivially evaluates to true (`'' == ''`) for any user who has never initiated a forgot-password request, which applies to administrators under normal conditions. This makes it possible for unauthenticated attackers to supply an arbitrary user ID via the `reset_user_id` POST parameter, bypass the activation code check entirely by omitting `reset_activation_code`, and set the target account's password to an attacker-chosen value, enabling full takeover of any account on the site, including administrator accounts.

The weakness was released by Alyudin Nafiie. The advisory is shared at wordfence.com. This vulnerability is known as CVE-2026-12416 since 06/16/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1552 for this issue.

Upgrading to version 1.0.0 eliminates this vulnerability.

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Productinfo

Type

• WordPress Plugin

Vendor

• pravel

Name

• Invoice Generator Plugin

Version

• 1.0

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

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