Highlights
Auth Bypass: 1 prior fix. Scrutinize any change in this area.
wp-password-bcrypt.php: most-fixed (2 issues). Treat as high-risk during review.
1 high-severity fix in this history; regressions here are high-impact.
Recurring patterns
The bug types that recur here, drawn from past fixes, not open vulnerabilities.
Auth Bypass: A failure to return the newly generated password hash from the replacement wp_set_password function could corrupt the stored authentication state, leading to potential authentication bypasses or account lockout issues.
Cryptography: Legacy, weaker PHPass hashes could persist indefinitely in the database if the plugin fails to correctly check if a password needs to be rehashed using the stronger Bcrypt algorithm upon successful verification.