CVE-2020-26564 – ObjectPlanet Opinio before 7.15 allows XXE attacks via three steps: modif 4 years ago ObjectPlanet Opinio before 7.15 allows XXE attacks via three steps: modify a .css file to have https://www.objectplanet.com/opinio/changelog.html https://packetstormsecurity.com/files/163707/ObjectPlanet-Opinio-7.13-7.14-XML-Injection.html