9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
0.004 Low
EPSS
Percentile
73.9%
MelisCms provides a full CMS for Melis Platform, including templating system, drag’n’drop of plugins, SEO and many administration tools. Attackers can deserialize arbitrary data on affected versions of melisplatform/melis-cms
, and ultimately leads to the execution of arbitrary PHP code on the system. Conducting this attack does not require authentication. Users should immediately upgrade to melisplatform/melis-cms
>= 5.0.1. This issue was addressed by restricting allowed classes when deserializing user-controlled data.