Auth bypass in Synchrony Financing

CVE-2026-100145

The Synchrony Financing WordPress plugin before 1.1.2 does not properly authorise requests to one of its REST routes that modifies WooCommerce orders, allowing unauthenticated attackers to reassign any order to an account they control, tamper with its details, and read the associated customer's personal data.

Vulnerability class: Broken Access Control

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

  • Synchrony Financing

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-100145?
CVE-2026-100145 is a medium-severity vulnerability in Synchrony Financing, classified under Incorrect Authorization. CVSS score: 6.5/10. Published 2026-10-21.
How severe is CVE-2026-100145?
Medium severity. CVSS v3 base score is 6.5 out of 10.