CVE-2022-39297
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.
SeverityHigh
CVSS7.7
Exploit probability—
ProductMelistechnology Meliscms
PublishedOct 12, 2022
First seenOct 12, 2022
Weakness typeCWE-502Deserialization of untrusted data
How to fix
Update
- melistechnology meliscms5.0.1 or later
- melisplatform/melis-cms5.0.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| melistechnology meliscms | v < 5.0.1 | 5.0.1 |
| melisplatform/melis-cmsPackagist | v < 5.0.1 | 5.0.1 |
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