Tyche Softwares Abandoned Cart Pro for WooCommerce Insecure Direct Object Reference Flaw (CVE-2026-97657) Rated CVSS 9.8
A newly published critical vulnerability in Tyche Softwares Abandoned Cart Pro for WooCommerce carries a CVSS score of 9.8. Here is what is affected and how to respond.
Key points
- CVE-2026-97657 affects Tyche Softwares Abandoned Cart Pro for WooCommerce.
- CVSS 9.8 (Critical).
- No exploitation confirmed yet.
Tyche Softwares Abandoned Cart Pro for WooCommerce is affected by CVE-2026-97657, a insecure direct object reference that the National Vulnerability Database rates 9.8 out of 10.
At a glance
- CVE
- CVE-2026-97657
- Product
- Tyche Softwares Abandoned Cart Pro for WooCommerce
- CVSS
- 9.8 Critical
- Weakness
- insecure direct object reference
- Exploited
- No known exploitation
What is the vulnerability?
The NVD entry states: 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 re
Affected versions
| Vendor | Product | Versions |
|---|---|---|
| Tyche Softwares | Abandoned Cart Pro for WooCommerce | up to 10.8.0 |
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Is it being exploited?
There is no public confirmation of exploitation at the time of publication. It does not appear in CISA's Known Exploited Vulnerabilities catalog. We will update this report if that changes.
What should you do?
- Identify whether the affected product and versions run in your environment.
- Apply the vendor update listed in the advisory as soon as it is available.
- Limit network exposure of the affected service until it is patched.
- Monitor the vendor advisory for updated guidance or exploitation reports.
What to do and how to stay safe: CVE-2026-97657
- Vulnerability severity scores ignore your specific architecture and context.
- Exploitability depends on network exposure and user behavior, not just code flaws.
- Prioritization requires continuous asset inventory and threat intelligence alignment.
Risk-based vulnerability management focuses your limited resources on the flaws that actually threaten your business. Start by mapping your critical assets and checking for active exploits to prioritize your backlog.
Step-by-step guide: Risk-Based Vulnerability Management: Prioritize Fixes by Actual Danger
General security guidance from the Threat Times newsroom. It is not confirmed advice from the organisations named in this story.
Frequently asked questions
What is CVE-2026-97657?
CVE-2026-97657 is a insecure direct object reference vulnerability in Tyche Softwares Abandoned Cart Pro for WooCommerce.
How severe is CVE-2026-97657?
It has a CVSS score of 9.8 Critical.
Is CVE-2026-97657 being exploited?
There is no public confirmation of exploitation at the time of publication.
