In Monstra CMS 3.0.4, an attacker with 'Editor' privileges can change the password of the administrator via an admin/index.php?id=users&action=edit&user_id=1, Insecure Direct Object Reference (IDOR).

The WP-Polls WordPress plugin before 2.76.0 prioritizes getting a visitor's IP from certain HTTP headers over PHP's REMOTE_ADDR, which makes it possible to bypass IP-based limitations to vote in certain situations.

The Restricted Site Access WordPress plugin before 7.3.2 prioritizes getting a visitor's IP from certain HTTP headers over PHP's REMOTE_ADDR, which makes it possible to bypass IP-based limitations in certain situations.

growi is vulnerable to Authorization Bypass Through User-Controlled Key

Sage XRT Treasury, version 3, fails to properly restrict database access to authorized users, which may enable any authenticated user to gain full access to privileged database functions. Sage XRT Treasury is a business finance management application. Database user access privileges are determined by the USER_CODE field associated with the querying user. By modifying the USER_CODE value to match that of a privileged user, a low-privileged, authenticated user may gain privileged access to the SQL database. A remote, authenticated user can submit specially crafted SQL queries to gain privileged access to the application database.

In Moodle, insufficient capability checks made it possible to remove other users' calendar URL subscriptions.

Squiz Matrix CMS 6.20 is vulnerable to an Insecure Direct Object Reference caused by failure to correctly validate authorization when submitting a request to change a user's contact details. NOTE: this is disputed by both the vendor and the original discoverer because it is a site-specific finding, not a finding about the Squiz Matrix CMS product.