CVE-2022-0212 Scanner

The WordPress Spider Calendar Plugin is a versatile tool designed to help WordPress site owners and webmasters add and manage events within their websites. It is developed by 10web and allows users to create, edit, and publish events through a user-friendly interface, enhancing the functionality of WordPress sites with calendar features. This plugin caters to a wide range of users, from individuals hosting community events to businesses scheduling appointments or promotions. Its integration with WordPress makes it a convenient choice for adding event management capabilities to websites, providing both frontend and backend users with a rich set of features to engage with calendars and events.

This specific XSS vulnerability exploits the plugin's handling of the 'callback' parameter within AJAX requests to the admin-ajax.php file. By not properly sanitizing and escaping this parameter, the plugin inadvertently allows the injection of malicious scripts. Attackers can craft payloads that, when executed, can lead to the execution of unauthorized JavaScript in the context of a user's browser session. This technical oversight exposes websites to various malicious activities, including session hijacking, redirection to phishing sites, and the theft of sensitive information.

Exploiting this vulnerability could have severe consequences, such as the compromise of user sessions, theft of sensitive information, and unauthorized access to the WordPress dashboard. Malicious actors could leverage this to deface the website, distribute malware, or even gain control over the affected website's content and user data. The nature of XSS vulnerabilities like this one highlights the need for rigorous input validation and sanitization practices to protect users and maintain the integrity and security of websites.

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References

• https://wpscan.com/vulnerability/15be2d2b-baa3-4845-82cf-3c351c695b47
• https://wordpress.org/plugins/spider-event-calendar/
• https://nvd.nist.gov/vuln/detail/CVE-2022-0212