CVE-2021-44565 Cross site scripting in francoisjacquet/rosariosis

Medium 5.4 Published 22 Feb 2022 Updated 4 Aug 2024

Remote attackers can inject arbitrary JavaScript or HTML via Markdown input fields in RosarioSIS, potentially leading to session hijacking or malicious actions.

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: Available

What is CVE-2021-44565?

CVE-2021-44565 is a medium-severity cross-site scripting vulnerability in n/a, published on 22 Feb 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 Cross Site Scripting (XSS) vulnerability exists in RosarioSIS before 7.6.1 via the xss_clean function in classes/Security.php, which allows remote malicious users to inject arbitrary JavaScript or HTML. An example of affected components are all Markdown input fields.

Weakness: CWE-79

Which versions are affected by CVE-2021-44565?

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

Package	Affected	Fixed in
`francoisjacquet/rosariosis` Packagist	All versions	`7.6.1`
`francoisjacquet/rosariosis` Packagist	All versions	`7.6.1`

Products include Rosariosis Rosariosis.

How do I fix CVE-2021-44565?

Upgrade francoisjacquet/rosariosis to 7.6.1 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-2021-44565 being exploited?

There is no known exploitation of CVE-2021-44565 in the wild and no public exploit code.

Sources

Also known as GHSA-44cg-qcpr-fwjh.