# Stitch Express <= 1.9.1 - Unauthenticated Order Status Check Bypass via 'override' Parameter

- **ID:** WPSEC-2026-0654
- **Plugin:** Stitch Express (`stitch-express`), https://wordpress.org/plugins/stitch-express/
- **Affected versions:** from 1.3.1 before 1.9.3
- **Fixed in:** 1.9.3 (Update to 1.9.3 or later.)
- **Severity:** Low 3.7 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N)
- **Weakness:** CWE-863
- **Usage among sites WPSec scans:** plugin Low, affected versions Low (as of 2026-10-08)
- **Attack surface analysis:** https://attacksurface.wpsec.com/plugin/stitch-express
- **Fix released:** 2026-10-07
- **Published:** 2026-10-08
- **URL:** https://wpsec.com/vuln/WPSEC-2026-0654/

## Description

The Stitch Express plugin for WordPress is vulnerable to an order status check bypass in versions 1.3.1 up to, and including, 1.9.1 via the 'override' parameter of the payment callback endpoint. This makes it possible for unauthenticated attackers who hold a paid Stitch Express payment for an order, such as that order's customer, to mark the order as paid while it is on hold.

## References

- https://wpsec.com/vuln/WPSEC-2026-0654/
- https://plugins.svn.wordpress.org/stitch-express/tags/1.9.3/
- https://wordpress.org/plugins/stitch-express/

Source: WPSec, https://wpsec.com/vuln/WPSEC-2026-0654/

License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Free to use, share and adapt, also commercially, if you credit WPSec and link to this advisory.