CVE-2022-39297

melisplatform/melis-cms vulnerable to deserialization of untrusted data

Published 12 Oct 2022Modified 17 Jun 2026CWE 502

In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

GHSA7.7CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L

Trivy's own label is CRITICAL. Rated critical by NVD. Rated lower by GHSA (high).

Description

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.

Affected packages and fixed versions

Source	Package	Fixed in
composer::GitHub Security Advisory Composer	melisplatform/melis-cms	5.0.1

References

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