CVE-2026-81543: Abandoned Cart Pro for WooCommerce privilege escalation via missing AJAX capability checks

CVE-2026-81543 · Severity: high · CVSS 8.8 · Published 2026-09-05

Abandoned Cart Pro is a WordPress plugin that recovers lost sales by sending automated cart reminder emails to customers. The plugin suffers from a privilege escalation flaw that allows low-privileged subscribers to modify email routing settings and intercept admin login links, gaining full administrative control. This is possible because the auto-login feature is enabled by default and the plugin fails to validate user permissions on critical settings changes.

Technologies: Tyche Softwares Abandoned Cart Pro for WooCommerce. Vendors: Tyche Softwares.

Quick answers

Is CVE-2026-81543 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-81543 being exploited in the wild.
How severe is CVE-2026-81543?
High severity, with a CVSS score of 8.8, published 5 September 2026.
Which products and versions are affected?
Tyche Softwares Abandoned Cart Pro for WooCommerce up to and including 10.7.1.
Is there a fix for CVE-2026-81543?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-81543 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-81543?
Check whether you run Tyche Softwares Abandoned Cart Pro for WooCommerce at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability is a privilege escalation caused by missing capability checks and nonce verification on multiple AJAX actions including wcap_save_connector_settings, wcap_send_manual_email, wcap_abandoned_cart_info, and wcap_change_manual_email_data. Authenticated attackers with subscriber-level access can exploit this to modify SMTP connector settings, redirecting administrator recovery emails to attacker-controlled servers. By intercepting auto-login links in diverted emails, attackers gain full administrative access. The attack requires only network access and valid subscriber credentials; the auto-login feature is enabled by default. Patches are available in version 10.8.0 and later.

Affected products

  • Tyche Softwares Abandoned Cart Pro for WooCommerce up to and including 10.7.1

Timeline

  • 2026-09-05: disclosed

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.