CVE-2026-77999 Joomla Extension - j2commerce.com - Unauthenticated PayPal callback forgery leading to order confirmation fraud in J2Store 1.0.0-3.3.21, 4.0.0-4.0.21, 4.1.0-4.1.6

Joomla Extension - j2commerce.com - Unauthenticated PayPal callback forgery leading to order confirmation fraud in J2Store 1.0.0-3.3.21, 4.0.0-4.0.21, 4.1.0-4.1.6 - The PayPal IPN listener's signature check validateIPN accepted UNVERIFIED and any non-INVALID response as valid, made its verificati...

EUVD-2026-70415

Joomla Extension - j2commerce.com - Unauthenticated PayPal callback forgery leading to order confirmation fraud in J2Store 1.0.0-3.3.21, 4.0.0-4.0.21, 4.1.0-4.1.6 - The PayPal IPN listener's signature check validateIPN accepted UNVERIFIED and any non-INVALID response as valid, made its verificati...

CVE-2026-77999

J2Store (Joomla extension by j2commerce.com) versions 1.0.0–3.3.21, 4.0.0–4.0.21, and 4.1.0–4.1.6 contain an unauthenticated PayPal callback forgery vulnerability. The IPN listener's signature check (_validateIPN()) treated UNVERIFIED and any non-INVALID response as valid, issued verification wit...

CVE-2026-15213 Welcart e-Commerce < 2.11.33 - Unauthenticated Payment Bypass via Forged Settlement Callback

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...

CVE-2026-15213

The CVE concerns the Welcart e-Commerce WordPress plugin prior to 2.11.33. The vulnerability lies in the settlement callback for convenience-store/bank-transfer payments, where there is no authenticity verification. An unauthenticated request can flip an order from unpaid to settled using only an...

CVE-2026-5050

The Payment Gateway for Redsys & WooCommerce Lite plugin for WordPress is vulnerable to Improper Verification of Cryptographic Signature in versions up to, and including, 7.0.0 due to successfulrequest handlers calculating a local signature but not validating DsSignature from the request before...

CVE-2025-14078

The PAYGENT for WooCommerce plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 2.4.6. This is due to missing authorization checks on the paygentcheckwebhook function combined with the paygentpermissioncallback function unconditionally returning true ...