The Safe SVG WordPress plugin before 2.2.6 has its sanitisation code is only running for paths that call wphandleupload, but not for example for code that uses wphandlesideload which is often used to upload attachments via raw POST data.

A Denial Of Service vulnerability exists in the safe-svg (aka Safe SVG) plugin through 1.9.4 for WordPress, related to potentially unwanted elements or attributes.

A Denial Of Service vulnerability exists in the safe-svg (aka Safe SVG) plugin through 1.9.4 for WordPress, related to unlimited recursion for a '<use ... xlink:href="#identifier">' substring.

The sanitisation step of the Safe SVG WordPress plugin before 1.9.10 can be bypassed by spoofing the content-type in the POST request to upload a file. Exploiting this vulnerability, an attacker will be able to perform the kinds of attacks that this plugin should prevent (mainly XSS, but depending on further use of uploaded SVG files potentially other XML attacks).