Easy PayPal Events & Tickets plugin for WordPress version 1.3 and earlier contain a hardcoded authentication bypass vulnerability in the QR code scanning functionality that allows unauthenticated remote attackers to bypass hash verification by supplying 'test' as the hash parameter. Attackers can access the vulnerable endpoint via the add_wpeevent_button_qr action to retrieve sensitive order details including PayPal transaction IDs, customer email addresses, purchase amounts, and ticket information for any order with a known or guessed post ID. This plugin was officially closed as of 2026-03-18.

eWON Firmware versions 12.2 to 13.0 contain an authentication bypass vulnerability that allows attackers with minimal privileges to retrieve sensitive user data by exploiting the wsdReadForm endpoint. Attackers can send POST requests to /wrcgi.bin/wsdReadForm with base64-encoded partial credentials and a crafted wsdList parameter to extract encrypted passwords for all users, which can be decrypted using a hardcoded XOR key.

Use of hard-coded credentials vulnerability affecting Vonets industrial wifi bridge relays and wifi bridge repeaters, software versions 3.3.23.6.9 and prior, enables an unauthenticated remote attacker to bypass authentication using hard-coded administrator credentials. These accounts cannot be disabled.

Adtec Digital SignEdje Digital Signage Player v2.08.28 contains multiple hardcoded default credentials that allow unauthenticated remote access to web, telnet, and SSH interfaces. Attackers can exploit these credentials to gain root-level access and execute system commands across multiple Adtec Digital product versions.