CVE-2026-119166 Details
Description
The Welcart e-Commerce plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 2.12.5 via the 'member[ID]' parameter due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to overwrite any existing Welcart shop-member account's email address and password by supplying that member's numeric ID, then authenticate as that member to achieve full account takeover. The only authentication barrier is a wp_verify_nonce() check against a nonce printed to every unauthenticated visitor on the auto-published New Enrollment Form, meaning no existing account, no WordPress login, and no non-default configuration is required to exploit this vulnerability.
A vulnerability exists in the Welcart e-Commerce plugin for WordPress, specifically in versions through 2.12.5. The issue is an Insecure Direct Object Reference (IDOR) that allows unauthenticated users to manipulate the 'member[ID]' parameter. Due to inadequate validation of user-controlled input, attackers can overwrite the email addresses and passwords of existing Welcart shop-member accounts. Exploiting this vulnerability enables full account takeover, as the attacker can log in as the affected member. The exploitation requires no special conditions, except for a nonce verification that is automatically provided to all unauthenticated visitors on the New Enrollment Form.
Users are advised to update the Welcart e-Commerce plugin to version 2.12.6 or later.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 31, 2026CISA-ADP
Assessed Nov 3, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-287 | Improper Authentication | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Welcart | <= 2.12.5 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Nov 3, 2026 | CVE Modified | CISA-ADP |
| Oct 31, 2026 | New CVE Received | [email protected] |