The Freemius SDK, as used by hundreds of WordPress plugin and theme developers, was vulnerable to Cross-Site Request Forgery and Information disclosure due to missing capability checks and nonce protection on the _get_debug_log, _get_db_option, and the _set_db_option functions in versions up to, and including 2.4.2. Any WordPress plugin or theme running a version of Freemius less than 2.4.3 is vulnerable.

Appointment Scheduler 3.0 is vulnerable to CSV Injection via a Language > Labels > Export action.

A lack of rate limiting in pjActionAjaxSend in Appointment Scheduler 3.0 allows attackers to cause resource exhaustion.

Appointment Scheduler 3.0 is vulnerable to Multiple Stored Cross-Site Scripting (XSS) issues via the name, plugin_sms_api_key, plugin_sms_country_code, calendar_id, title, country name, or customer_name parameter.

Appointment Scheduler 3.0 is vulnerable to Multiple HTML Injection issues via the SMS API Key or Default Country Code.

User enumeration is found in in PHPJabbers Appointment Scheduler 3.0. This issue occurs during password recovery, where a difference in messages could allow an attacker to determine if the user is valid or not, enabling a brute force attack with valid users.

There is a Cross Site Scripting (XSS) vulnerability in the "theme" parameter of preview.php in PHPJabbers Appointment Scheduler v3.0

A vulnerability, which was classified as problematic, was found in innologi appointments Extension up to 2.0.5 on TYPO3. This affects an unknown part of the component Appointment Handler. The manipulation of the argument formfield leads to cross site scripting. It is possible to initiate the attack remotely. Upgrading to version 2.0.6 is able to address this issue. The identifier of the patch is 986d3cb34e5e086c6f04e061f600ffc5837abe7f. It is recommended to upgrade the affected component. The identifier VDB-217353 was assigned to this vulnerability.

SQL injection vulnerability in Sourcecodester Patient Appointment Scheduler System v1 by oretnom23, allows attackers to execute arbitrary SQL commands via the username and password fields to login.php.

Multiple cross-site scripting (XSS) vulnerabilities exist in PHPJabbers Appointment Scheduler 2.3, in the index.php admin login webpage (with different request parameters), allows remote attackers to inject arbitrary web script or HTML.