CVE-2022-4640 Mingsoft MCMS Article save cross site scripting

Low 3.5 Published 21 Dec 2022 Updated 10 Apr 2025

Remote attackers can inject malicious scripts via the Article save function in Mingsoft MCMS, potentially executing code in victim browsers.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2022-4640?

CVE-2022-4640 is a low-severity cross-site scripting vulnerability in Mingsoft MCMS, published on 21 Dec 2022. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

A vulnerability has been found in Mingsoft MCMS 5.2.9 and classified as problematic. Affected by this vulnerability is the function save of the component Article Handler. The manipulation leads to cross site scripting. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-216499.

Weakness: CWE-707

Which versions are affected by CVE-2022-4640?

2 open source packages ship an affected version, including net.mingsoft:ms-mcms. It affects 1 product.

Package	Affected	Fixed in
`net.mingsoft:ms-mcms` Maven	All versions to `5.2.9`	None
`net.mingsoft:ms-mcms` Maven	All versions to `5.2.9`	None

Products include Mingsoft Mcms.

How do I fix CVE-2022-4640?

No fix has been published for CVE-2022-4640 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2022-4640 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-4640 exists.

Sources

Also known as GHSA-6rvv-h8g7-728w.