Bootstrap, a popular front-end framework, is not immune to vulnerabilities that can pose significant security risks. Five notable Bootstrap vulnerabilities have been identified, including cross-site scripting (XSS) attacks in versions 3.4.1 and 4.0.0-4.3.1, earlier versions of the framework, tooltip components with data-template attributes, multiple versions of the framework, and a specific range of versions. These vulnerabilities can allow attackers to execute malicious scripts through improperly sanitized data attributes, potentially compromising user data and application integrity. To mitigate these issues, it is recommended to update Bootstrap to version 3.4.1 or 4.3.1 for the first vulnerability, to upgrade to Bootstrap 3.4.0 or a newer version for the second vulnerability, to upgrade to Bootstrap 3.4.0 or higher for the third and fourth vulnerabilities, and to upgrade to version 4.1.2 or later for the fifth vulnerability. Additionally, implementing robust input sanitization and validation is essential to prevent XSS attacks.