CVE-2022-33157 libconnect Extension for Typo3 Vulnerable to XSS

Medium 6.1 Published Updated

Cross-site scripting vulnerability in the libconnect extension for TYPO3 allows attackers to inject malicious scripts.

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

What is CVE-2022-33157?

CVE-2022-33157 is a medium-severity cross-site scripting vulnerability in n/a, published on 12 Jul 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

The libconnect extension before 7.0.8 and 8.x before 8.1.0 for TYPO3 allows XSS.

Weakness: CWE-79

Which versions are affected by CVE-2022-33157?

4 open source packages ship an affected version, including subhh/libconnect. It affects 1 product.

PackageAffectedFixed in
subhh/libconnect PackagistAll versions7.0.8
subhh/libconnect PackagistAll versions7.0.8
subhh/libconnect PackagistFrom 8.0.08.1.0
subhh/libconnect PackagistFrom 8.0.08.1.0

Products include Libconnect Project Libconnect.

How do I fix CVE-2022-33157?

Upgrade subhh/libconnect to a fixed version for your release line: 7.0.8 or 8.1.0.

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-2022-33157 being exploited?

There is no known exploitation of CVE-2022-33157 in the wild and no public exploit code.

Sources

Also known as GHSA-c8f2-5h29-8j2h.

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