CVE-2026-111031: Welcart e-Commerce open redirect via usces_referer parameter

CVE-2026-111031 · Severity: info · Published 2026-10-28

The Welcart e-Commerce WordPress plugin fails to validate URLs before redirecting users, allowing attackers to send users to arbitrary external websites. An unauthenticated attacker can craft a malicious link to redirect site visitors to phishing pages or other malicious domains, potentially leading to credential theft or malware distribution.

Technologies: Welcart e-Commerce. Vendors: Welcart.

Quick answers

Is CVE-2026-111031 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-111031 being exploited in the wild.
How severe is CVE-2026-111031?
Informational severity, published 28 October 2026.
Which products and versions are affected?
Welcart e-Commerce before 2.12.6.
Is there a fix for CVE-2026-111031?
Yes: fixed in 2.12.6. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-111031 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-111031?
Check whether you run Welcart e-Commerce 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.

How to fix

  • Fixed in: 2.12.6

Technical details

The plugin does not validate user-supplied URL input in the usces_referer parameter before using it in a redirect operation, creating an open redirect vulnerability. An unauthenticated attacker can exploit this via a crafted URL to redirect users to arbitrary external websites. The vulnerability is classified as CWE-601 (URL Redirection to Untrusted Site).

Affected products

  • Welcart e-Commerce before 2.12.6

Timeline

  • 2026-10-26: disclosed
  • 2026-10-28: advisory

References

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