# PAYCOMET for WooCommerce <= 5.45 - Unauthenticated Missing Signature Verification to Saved Card Deletion and Subscription Payment Token Overwrite

- **ID:** WPSEC-2026-1526
- **Plugin:** PAYCOMET for WooCommerce (`paytpv-for-woocommerce`), https://wordpress.org/plugins/paytpv-for-woocommerce/
- **Affected versions:** all versions before 5.46
- **Fixed in:** 5.46 (Update to 5.46 or later.)
- **Severity:** Medium 6.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L)
- **Weakness:** CWE-345
- **Usage among sites WPSec scans:** plugin Low, affected versions Low (as of 2026-10-23)
- **Attack surface analysis:** https://attacksurface.wpsec.com/plugin/paytpv-for-woocommerce
- **Fix released:** 2026-10-22
- **Published:** 2026-10-23
- **URL:** https://wpsec.com/vuln/WPSEC-2026-1526/

## Description

The PAYCOMET for WooCommerce plugin for WordPress is vulnerable to unauthorized modification and deletion of data via the card tokenization payment notification (wc-api=woocommerce_paytpv, tpvLstr=notify) in all versions up to, and including, 5.45, due to the notification hash check being skipped for execute_purchase notifications whose Order value contains '_tokenization'. This makes it possible for unauthenticated attackers to delete any customer's saved payment card by its ID, attach attacker-supplied PAYCOMET user tokens to that customer's account, and overwrite the stored payment tokens of subscription orders that used the card.

## References

- https://wpsec.com/vuln/WPSEC-2026-1526/
- https://plugins.svn.wordpress.org/paytpv-for-woocommerce/tags/5.46/
- https://wordpress.org/plugins/paytpv-for-woocommerce/

Source: WPSec, https://wpsec.com/vuln/WPSEC-2026-1526/

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.