Vulnerability in Welcart E-Commerce

CVE-2026-15213

The Welcart e-Commerce WordPress plugin before 2.11.33 does not verify the authenticity of its convenience-store / bank-transfer settlement callback: an unauthenticated request can flip an order from unpaid to settled purely from an order number and a status flag, with no signature, amount, or origin check. Because these are pay-later methods, an attacker can mark their own unpaid order as settled and obtain fulfilment without paying.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.002 (4.2th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 4.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-15213: held from 0.001 to 0.002.

EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.000

Affected products

  • Welcart E-Commerce — versions 0

References

Frequently asked questions

What is CVE-2026-15213?
CVE-2026-15213 is a medium-severity vulnerability in Welcart E-Commerce, classified under CWE-345 INSUFFICIENT VERIFICATION OF DATA AUTHENTICITY. CVSS score: 5.3/10. Published 2026-08-12.
How severe is CVE-2026-15213?
Medium severity. CVSS v3 base score is 5.3 out of 10.