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**Name of the Vulnerable Software and Affected Versions** TypeSquare Webfonts for ConoHa versions prior to 2.0.5 **Description** The plugin fails to properly verify if a user is authorized to perform specific actions, leading to an authorization bypass. Authenticated attackers with subscriber-level access or higher can modify site-wide font settings by submitting a POST request to any 'wp-admin' page. The affected settings include the `typesquare auth` option (`fontThemeUseType`), `show post form`, and `typesquare fonttheme`. Additionally, when `fontThemeUseType` is set to 1 or 3, the lack of nonce verification—a unique token used to prevent duplicate or forged requests—makes these branches susceptible to cross-site request forgery. **Recommendations** Update to a version later than 2.0.4.