CVE-2022-3245 Code Injection in display of tag title on saving tags in microweber/microweber

Medium 4.3 Published 20 Sep 2022 Updated 27 May 2025

Attackers can inject malicious HTML or JavaScript via tag titles, potentially executing code or bypassing security controls in Microweber.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: Available

What is CVE-2022-3245?

CVE-2022-3245 is a medium-severity cross-site scripting vulnerability in Microweber Microweber, published on 20 Sep 2022. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

HTML injection attack is closely related to Cross-site Scripting (XSS). HTML injection uses HTML to deface the page. XSS, as the name implies, injects JavaScript into the page. Both attacks exploit insufficient validation of user input.

Weakness: CWE-79, CWE-94

Which versions are affected by CVE-2022-3245?

2 open source packages ship an affected version, including microweber/microweber. It affects 1 product.

Package	Affected	Fixed in
`microweber/microweber` Packagist	All versions	`1.3.2`
`microweber/microweber` Packagist	All versions	`1.3.2`

Products include Microweber Microweber.

How do I fix CVE-2022-3245?

Upgrade microweber/microweber to 1.3.2 or later.

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-2022-3245 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-3245 exists.

All Microweber Microweber vulnerabilities

Sources

Also known as GHSA-gm8c-w9cm-c445.