The ProfileGrid WordPress plugin before 6.0.0.0 does not perform authorization checks before returning a group's member list, and registers the handler for unauthenticated users, allowing any unauthenticated visitor to disclose the members and their identifiers of any group, including private or closed ones, bypassing the ProfileGrid WordPress plugin before 6.0.0.0's member-visibility setting.

The ProfileGrid WordPress plugin before 6.0.0.0 does not perform authorization checks when listing a group's pending membership requests, allowing any authenticated user such as a Subscriber to disclose the names and request dates of the users awaiting approval to join any group, including private ones.

The ProfileGrid WordPress plugin before 5.9.9.8 does not verify that a notification belongs to the requesting user before deleting it, allowing any authenticated user such as a Subscriber to delete other users' notifications by enumerating notification identifiers.

The ProfileGrid WordPress plugin before 5.9.9.7 does not verify PayPal IPN notifications before granting paid group membership, allowing unauthenticated attackers to forge a payment notification and mark any user as a paid member of any group without any payment being made.

The ProfileGrid WordPress plugin before 5.9.9.7 does not perform a capability check on its license management actions, relying only on a nonce that is exposed to any logged-in user, allowing authenticated users with Subscriber-level access and above to overwrite the site's premium license settings.

The ProfileGrid WordPress plugin before 5.9.9.7 does not perform any authorization or ownership check on some of its private-message thread actions, allowing authenticated users with Subscriber-level access and above to soft-delete, tamper with the metadata of, and mark as read other users' private message threads.

The ProfileGrid – User Profiles, Groups and Communities plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on the pminviteuser function in all versions up to, and including, 5.9.8.4. This makes it possible for authenticated attackers, with Subscriber-level access and above, to add themselves or any registered user to any ProfileGrid group, including closed and paid groups, bypassing all authorization and payment gates.

The ProfileGrid – User Profiles, Groups and Communities plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 5.9.8.4. This is due to the plugin not properly verifying that a user is authorized to perform an action via the pmsetgrouporder, pmsetgroupitems, and pmsetfieldorder AJAX actions. This makes it possible for authenticated attackers, with Subscriber-level access and above, to modify site-wide ProfileGrid group settings including group menu order, group list order, group icon display, and field ordering.

The ProfileGrid – User Profiles, Groups and Communities plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the ‘pmgetmessengernotification’ function in all versions up to, and including, 5.9.5.4 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a logged-in user into performing an action such as clicking on a link.

The ProfileGrid – User Profiles, Groups and Communities plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 5.9.4.5 via deserialization of untrusted input in the getusermetafieldshtml function. This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present.

The ProfileGrid – User Profiles, Groups and Communities plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the pmdeclinejoingrouprequest and pmapprovejoingrouprequest functions in all versions up to, and including, 5.9.4.4. This makes it possible for authenticated attackers, with Subscriber-level access and above, to approve or decline join group requests which is normally should be available to administrators only.

The ProfileGrid – User Profiles, Groups and Communities plugin for WordPress is vulnerable to blind and time-based SQL Injections via the rid and search parameters in all versions up to, and including, 5.9.4.7 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with Subscriber-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

The ProfileGrid – User Profiles, Groups and Communities plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 5.9.4.2 via the pmmessengershowmessages function due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with Subscriber-level access and above, to read private conversations of other users.

The ProfileGrid – User Profiles, Groups and Communities plugin for WordPress is vulnerable to Limited Server-Side Request Forgery in all versions up to, and including, 5.9.4.2 via the pmuploadimage function. This makes it possible for authenticated attackers, with Subscriber-level access and above, to make web requests to arbitrary locations originating from the web application and can be used to download and view images, as well as validating if a non-image file exists, both on local or remote hosts.

Missing Authorization vulnerability in ProfileGrid User Profiles ProfileGrid allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects ProfileGrid: from n/a through 5.8.7.

The ProfileGrid – User Profiles, Groups and Communities plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 5.8.9 via the 'pmuploadimage' function due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with Subscriber-level access and above, to change the profile picture of any user.

The ProfileGrid – User Profiles, Groups and Communities plugin for WordPress is vulnerable to privilege escalation in all versions up to, and including, 5.8.9. This is due to a lack of validation on user-supplied data in the 'pmuploadimage' AJAX action. This makes it possible for authenticated attackers, with Subscriber-level access and above, to update their user capabilities to Administrator.

The ProfileGrid – User Profiles, Memberships, Groups and Communities plugin for WordPress is vulnerable to unauthorized deletion of data due to a missing capability check on the pmuploadcoverimage function in all versions up to, and including, 5.8.3. This makes it possible for authenticated attackers, with subscriber access or higher, to delete attachments.