The PPWP – Password Protect WordPress | #1 Most-Reviewed Password Plugin plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 1.9.20 via the ppw_free_set_password AJAX action due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with Contributor-level access and above, to update the password on any password protected post and subsequently access the content.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Password Protect Page Plugin | — | Update password-protect-page plugin to version 1.9.21, or a newer patched version | Aug 17, 2026 | Aug 15, 2026 |
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