mPDF through 7.1.6, if deployed as a web application that accepts arbitrary HTML, allows SSRF, as demonstrated by a '<img src="http://192.168' substring that triggers a call to getImage in Image/ImageProcessor.php.
mPDF 7.0 contains a local file inclusion vulnerability that allows attackers to read arbitrary system files by manipulating annotation file parameters.
mPDF version 7.1.7 and earlier contains a CWE-502: Deserialization of Untrusted Data vulnerability in getImage() method of Image/ImageProcessor class that can result in Arbitry code execution, file write, etc..
CVSS 3.0HIGH 8.8·Network·No auth·User interaction·EPSS 0.02101·Published 2019-02-04·Fixed in 7.1.8CWE-502