PatchSiren cyber security CVE debrief
CVE-2026-12416 pravel CVE debrief
The Invoice Generator plugin for WordPress, version 1.0.0 and below, contains a critical vulnerability (CVE-2026-12416) that allows unauthenticated attackers to take over any account on the site, including administrator accounts. This is achieved through a flawed password reset mechanism in the `pravel_invoice_change_password()` function, which lacks nonce verification and authorization checks. The function performs a loose equality comparison between the supplied `reset_activation_code` POST parameter and the target user's stored `forgot_email` user meta, making it trivial for attackers to bypass the activation code check. By supplying an arbitrary user ID via the `reset_user_id` POST parameter and omitting `reset_activation_code`, attackers can set the target account's password to a chosen value, enabling full account takeover.
- Vendor
- pravel
- Product
- Invoice Generator
- CVSS
- CRITICAL 9.8
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-06-24
- Original CVE updated
- 2026-06-25
- Advisory published
- 2026-06-24
- Advisory updated
- 2026-06-25
Who should care
Administrators and users of the Invoice Generator plugin for WordPress should be aware of this critical vulnerability. Given the plugin's functionality and the nature of the vulnerability, any site using this plugin is at risk. Immediate action is recommended to mitigate potential attacks.
Technical summary
The vulnerability in the Invoice Generator plugin for WordPress is due to the `pravel_invoice_change_password()` function being registered as a nopriv AJAX handler without nonce verification or authorization checks. The function compares the `reset_activation_code` POST parameter with the user's stored `forgot_email` meta value. However, this comparison is not strict, allowing an empty string comparison to evaluate to true. This flaw enables unauthenticated attackers to change the password of any user by providing an arbitrary user ID and omitting the activation code, effectively taking over the account.
Defensive priority
High. Immediate action is required to prevent account takeovers.
Recommended defensive actions
- Update the Invoice Generator plugin to a version that fixes this vulnerability, if available.
- Limit access to the plugin's functionality to prevent unauthorized use.
- Monitor user accounts for suspicious activity, such as unexpected password changes.
- Implement additional security measures, such as two-factor authentication, to enhance account security.
- Regularly review and update plugins and themes to ensure they are secure and up-to-date.
Evidence notes
The CVE-2026-12416 record and associated sources indicate a critical vulnerability in the Invoice Generator plugin for WordPress. The vulnerability allows for account takeover via a flawed password reset mechanism. Sources include the CVE.org record, NVD details, and references from security researchers.
Official resources
This article is AI-assisted and based on the supplied source corpus.