Is CVE-2022-39297 actively exploited?

No active exploitation of CVE-2022-39297 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2022-39297 be exploited remotely?

Yes. CVE-2022-39297 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2022-39297?

CVE-2022-39297 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2022-39297

CWE-502Published: October 12, 2022· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official 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.

NVD Source

Risk Analysis

This vulnerability allows unauthenticated attackers to perform arbitrary deserialization, leading to remote code execution on the Melis Platform. Given the critical CVSS score of 9.8, this poses a severe risk to system integrity and confidentiality.

There is no known public exploit for this vulnerability, which is remotely exploitable due to its network-based vector and low complexity.

Recommended Action

Users must upgrade to melisplatform/melis-cms version 5.0.1 or higher to apply the necessary deserialization restrictions.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2022-39297 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-502): Insecure deserialization vulnerabilities allow attackers to inject malicious objects during deserialization, potentially enabling remote code execution.