CVE-2022-39298

Name: CVE-2022-39298
Creator: NVD / NIST
Published: 2022-10-12T23:15:09.707+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.94%

Last modified Jun 17, 2026

CVE-2022-39298 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. MelisFront is the engine that displays website hosted on Melis Platform. It deals with showing pages, plugins, URL rewritting, search optimization and SEO, etc. EPSS estimates a 0.94% chance of exploitation in the next 30 days.

Description

MelisFront is the engine that displays website hosted on Melis Platform. It deals with showing pages, plugins, URL rewritting, search optimization and SEO, etc. Attackers can deserialize arbitrary data on affected versions of `melisplatform/melis-front`, 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-front` >= 5.0.1. This issue was addressed by restricting allowed classes when deserializing user-controlled data.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

0.94%

56.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-502

Affected Software

Vendor	Product	Versions
Melistechnology	Meliscms	< 5.0.1

References

https://github.com/melisplatform/melis-front/commit/89ae612d5f1f7aa2fb621ee8de27dffe1feb851ePatch, Third Party Advisory
https://github.com/melisplatform/melis-front/security/advisories/GHSA-h479-2mv4-5c26Third Party Advisory
https://github.com/melisplatform/melis-front/commit/89ae612d5f1f7aa2fb621ee8de27dffe1feb851ePatch, Third Party Advisory
https://github.com/melisplatform/melis-front/security/advisories/GHSA-h479-2mv4-5c26Third Party Advisory

Timeline

Published: Oct 12, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-39298?

How severe is CVE-2022-39298?

CVE-2022-39298 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.94% probability of exploitation in the next 30 days.

How do I fix CVE-2022-39298?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-39298?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST