Usc E Shop - Security Vulnerability (CVE-2026-119166)

Q: Am I affected by this vulnerability?

You are affected if your site runs Usc E Shop. No account is needed to exploit this, so a public site is reachable by anyone.

Q: How do I fix it?

Update Usc E Shop to the latest available version. Where the vendor has not yet published a fix, remove or disable the plugin until they do.

CVE-2026-119166

Vulnerability CVE-2026-119166 PLUGIN usc-e-shop MEDIUM

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.

CVE-2026-119166

MEDIUM CVSS 5.3 Published 2026-10-31 Updated 2026-11-03

AI Risk Elevated (60/100) Active Exploit: No strong signal Published Exploit: No public exploit references Priority: P3 Priority

Severity Band MEDIUM

CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Affected Components 2

Reference Links 7

AI Risk Engine Elevated (60/100)

Exploitability High

Active Exploitation No strong signal

Published Exploit Status No public exploit references

Threat Timeline

2026-10-31 CVE published and first recorded in the threat feed.
2026-11-03 Record updated with latest vulnerability metadata.
2026-11-07 AI technical context refreshed for mitigation and impact guidance.
Now Monitoring for follow-up changes, linked references, and new related CVEs.

AI Context

Machine-generated threat intelligence

AI Updated 4 days ago

AI enriched 4 days ago (2026-11-07 20:27 UTC)

Technical Summary

Potential Impact

Severity is MEDIUM (CVSS 5.3). Depending on deployment context, affected components may be exposed to unauthorized actions or data integrity risk.

Exploitability Assessment

Exploitability is assessed as High based on remote code execution potential, low-bar exploit prerequisites.

Primary risk drivers: remote code execution potential, low-bar exploit prerequisites

Mitigation Recommendations

Validate affected product versions, prioritize patching, and monitor references for vendor remediation guidance. If immediate patching is not possible, apply compensating controls and limit exposure of vulnerable surfaces.

Detection & Monitoring

Track authentication anomalies, unexpected file writes, and suspicious plugin API activity around affected components.

Business Impact Lens

AI risk score 60/100 (Elevated, High) with priority P3 Priority. Prioritize remediation where affected components process customer data, admin sessions, or Internet-exposed workflows.

Affected Products

Usc E Shop PLUGIN · usc-e-shop Affected: <= 2.12.5 Fixed version not specified

Welcart e-Commerce PLUGIN · welcart-e-commerce Affected: <= 2.12.5 Fixed version not specified

References

What to do about this

Patch promptly The consequence is significant even where an attacker needs a foothold first.

Fix it

Update Usc E Shop to the latest available version.

Where the vendor has not published a fix yet, disable the plugin until they do.

No Hack Halt control meaningfully contains this one — updating is the remedy. We would rather say so than sell you something that will not help.

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