PatchSiren cyber security CVE debrief
CVE-2026-12417 pravel CVE debrief
The SignUp & SignIn plugin for WordPress is vulnerable to Authentication Bypass via Weak Password Reset Validation leading to Account Takeover in versions up to, and including, 1.0.0. This vulnerability is due to the `pravel_change_password()` AJAX handler performing no nonce verification, no capability check, and only a loose equality check between an attacker-supplied `reset_activation_code` POST parameter and the target user's `forgot_email` user meta value. An attacker can exploit this by sending a crafted POST request to `admin-ajax.php` with `action=pravel_change_password`, `reset_user_id` set to the target account's user ID, and `new_password_custom` set to an attacker-chosen password. Successful exploitation allows the attacker to authenticate with the newly set password and fully take over the targeted account, achieving administrator-level privilege escalation on the affected site. The vulnerability has a CVSS score of 9.8 and is considered CRITICAL. WordPress users should immediately update the plugin to a patched version to prevent potential attacks.
- Vendor
- pravel
- Product
- SignUp & SignIn
- 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 of WordPress sites using the SignUp & SignIn plugin, especially those with version 1.0.0 or earlier, should be aware of this critical vulnerability. Immediate action is required to update the plugin to a patched version to prevent potential account takeovers and administrator-level privilege escalation on their sites.
Technical summary
The vulnerability in the SignUp & SignIn plugin for WordPress is caused by the `pravel_change_password()` AJAX handler's lack of nonce verification, capability checks, and a loose equality check for the `reset_activation_code` POST parameter. This allows unauthenticated attackers to change the password of any WordPress user, including administrators, by sending a crafted POST request to `admin-ajax.php`. The vulnerability has a CVSS score of 9.8, indicating a high severity level. The CWE-640 weakness is associated with this vulnerability.
Defensive priority
High priority should be given to updating the SignUp & SignIn plugin to a patched version. Site administrators should verify that the plugin version is updated and monitor for any suspicious activity related to account changes or unauthorized access.
Recommended defensive actions
- Update the SignUp & SignIn plugin to a patched version immediately.
- Verify that the plugin version is updated and monitor for suspicious activity.
- Implement additional security measures such as two-factor authentication.
- Regularly review and update all plugins and themes on the WordPress site.
- Monitor for any unauthorized account changes or access attempts.
Evidence notes
The vulnerability details are based on information from the CVE record and the NVD database. The CVE-2026-12417 record provides an overview of the vulnerability, while the NVD database offers additional details on the vulnerability's CVSS score and vector. The source item URL provides further information on the vulnerability from the Wordfence security team.
Official resources
This article is AI-assisted and based on the supplied source corpus.