CVE-2026-7655

HIGH

SureCart <= 4.2.3 - Unauthenticated Linked WordPress Account Takeover via Forged customer.updated Webhook

Title source: cna
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2026-7655. PoCs published by incogbyte.

AI-analyzed exploit summary Exploit demonstrates a WordPress account takeover via CVE-2026-7655 in SureCart <= 4.2.3, where a `customer.updated` webhook with a forged email overwrites the linked WordPress user's email, enabling password reset hijacking. The PoC includes HMAC-SHA256 signature verification using the site's signing secret.

Description

The SureCart plugin for WordPress is vulnerable to privilege escalation via account takeover in versions up to, and including, 4.2.3. This is due to the plugin not properly validating a user's identity prior to updating their details like email during customer profile synchronization from webhook events. This makes it possible for unauthenticated attackers to change linked user's email addresses, including administrators if the administrator account is linked to a SureCart customer record, and leverage that to reset the user's password and gain access to their account if the customer ID is known.

Exploits (1)

github WORKING POC 4 stars
by incogbyte · pythonpoc
https://github.com/incogbyte/wp-cve-exploits/tree/main/CVE-2026-7655

Exploit demonstrates a WordPress account takeover via CVE-2026-7655 in SureCart <= 4.2.3, where a `customer.updated` webhook with a forged email overwrites the linked WordPress user's email, enabling password reset hijacking. The PoC includes HMAC-SHA256 signature verification using the site's signing secret.

Classification
Working Poc 100%
Attack Type
Auth Bypass
Complexity
Complex
Reliability
Reliable
Target: SureCart WordPress Plugin <= 4.2.3
No auth needed
Prerequisites: Possession of the site's SureCart webhook signing secret · A SureCart customer ID already linked to a target WordPress user (e.g., Administrator)
mistral-large-3 · analyzed Jul 17, 2026 Full analysis →

Scores

CVSS v3 8.1
EPSS 0.0032
EPSS Percentile 24.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-640
Status published
Products (1)
surecart/SureCart – Ecommerce Made Easy For Selling Physical Products, Digital Downloads, Subscriptions, Donations, & Payments < 4.2.3
Published Jul 11, 2026
Tracked Since Jul 11, 2026