* Escape HTML in the location field of a calendar event post
- This allowed script tags to be interpreted in the post display of an event.
* Add form security token check to /admin/phpinfo module
- This prevents basic XSS attacks against /admin/phpinfo
* Add form security token check to /babel module
- This prevents basic XSS attacks against /babel
* Prevent pass-through for attachments
- This addresses a straightforward Reflected XSS vulnerability if a malicious HTML/Javascript file is attached to a post through upload
* Prevent overwriting cid on event edit
- This allowed to share an event as any other user after zeroing the cid field of an existing event
* Check form security token in /settings/userexport module
- Prevents basic XSS attacks against /settings/userexport/*
* Escape HTML in the location field of a calendar event post
- This allowed script tags to be interpreted in the post display of an event.
* Add form security token check to /admin/phpinfo module
- This prevents basic XSS attacks against /admin/phpinfo
* Add form security token check to /babel module
- This prevents basic XSS attacks against /babel
* Prevent pass-through for attachments
- This addresses a straightforward Reflected XSS vulnerability if a malicious HTML/Javascript file is attached to a post through upload
* Prevent overwriting cid on event edit
- This allowed to share an event as any other user after zeroing the cid field of an existing event
- Remove capturing expression for A|B in favor of bracket syntax in regular expression since matches aren't used.
- Regular expressions have their own character escape notation including backslashes that need to be escaped in a PHP string.
- Actually address https://github.com/friendica/friendica/issues/13761#issuecomment-1949930922
* Image handling reworked, new image formats added
* Updated messages.po
* The dot is now part of the file extension
* Added WebP in install documentation
* Handle unhandled mime types
* Fixed animated picture detected
