CVE-2026-97657
9.8CriticalPublished 14 Oct 2026 · NVD status: Deferred · AI triage by gemini-3.8-flash
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Impact
- Full C/I/A compromise
- Weakness
- CWE-639
Impact
Unauthenticated remote attackers can take over any WordPress account—including administrators—that has an abandoned cart. The attacker only needs network access and a legitimate cart-recovery email sent to their own address.
Root cause
The plugin uses malleable AES-CTR encryption without an integrity check, bypasses HMAC validation if the wcap_nonce parameter is omitted, and fails to verify cart ownership before authenticating the user via wp_set_auth_cookie().
Affected systems
Abandoned Cart Pro for WooCommerce plugin for WordPress versions up to and including 10.8.0
CVSS v3.1 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Fix & remediation
Upgrade Abandoned Cart Pro for WooCommerce to a version newer than 10.8.0. If you cannot patch immediately, deactivate the plugin.
$ wp plugin update woocommerce-abandoned-cart-proAI-suggested. Run it in staging first and check it against the vendor advisory. Why?
NVD description
The Abandoned Cart Pro for WooCommerce plugin for WordPress is vulnerable to Authentication Bypass via Malleable Encryption and Bypassable HMAC in all versions up to, and including, 10.8.0. This is due to the use of MAC-free AES-CTR encryption for cart-recovery link tokens — where the 8-byte CTR nonce is carried inside the ciphertext blob and the encryption key is looked up using the attacker-supplied `user_email` GET parameter — combined with an HMAC nonce check in `wcap_email_track_links()` that is only enforced when the `wcap_nonce` parameter is non-empty, allowing complete bypass by omission, and an insecure direct object reference on the decrypted `abandoned_id` with no ownership verification confirming the cart belongs to the email used for decryption. This makes it possible for unauthenticated attackers who possess a single legitimate cart-recovery link (obtained from their own reminder email) to recover the keystream, forge a ciphertext that decrypts to any victim's cart ID, and trigger a call to `wp_set_auth_cookie()` for the victim user — achieving full account takeover of any user who has ever abandoned a cart, including administrators. The auto-login feature defaults to enabled and is forced on during plugin upgrades, meaning all affected installations are exploitable without any additional configuration.