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BookStack v0.25.4 Release Notes

Release Date: 2019-03-21 // about 5 years ago

  • Security Release

    🚀 This release patches a security vulnerability that allowed PHP files, using a non-.php extension, to be uploaded via image upload endpoints. The PHP files could then be called externally to perform malicious activity.

    🚀 This is a continuation upon the security updates enforced in v0.25.3. Please see that release for further information on this kind of vulnerability.

    ⚡️ This update applies a whitelist to file extensions for uploaded images to ensure php-like files, such as .phtml or .php3, cannot exploit web servers that execute such files.