CVE-2026-66682Network attack vector

Administrator access via auto-login flaw

Published Aug 20, 2026 · Updated Aug 20, 2026

Privilege escalation in Tyche Softwares Abandoned Cart Pro for WooCommerce 10.4.0 and earlier allows remote attackers to gain admin access. Tyche states that the abandoned cart recovery auto-login functionality contained a critical security flaw, and the 10.4.1 release also added missing capability checks and nonce verification in AJAX handlers. Internet-exposed stores using the vulnerable plugin are the relevant exposure case for the auto-login issue, with site takeover risk if the flaw is successfully reached.

CVSS severity9.8
Critical
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Privilege escalation in Tyche Softwares Abandoned Cart Pro for WooCommerce 10.4.0 and earlier allows remote attackers to gain admin access. Tyche states that the abandoned cart recovery auto-login functionality contained a critical security flaw, and the 10.4.1 release also added missing capability checks and nonce verification in AJAX handlers. Internet-exposed stores using the vulnerable plugin are the relevant exposure case for the auto-login issue, with site takeover risk if the flaw is successfully reached.

The record

CVE
CVE-2026-66682
Published
Aug 20, 2026
Updated
Aug 20, 2026
Vendor
Tyche Softwares
Product
Abandoned Cart Pro for WooCommerce
Classifications
CWE-266, T1068
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 20, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 20, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=n/a <=10.4.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Tyche Softwares · Abandoned Cart Pro for WooCommerceversion=n/a <=10.4.0

Published CVSS scores

9.8GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-266Incorrect Privilege Assignment
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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