CVE-2021-4179 Cross-site Scripting (XSS) - Stored in livehelperchat/livehelperchat

Medium 6.6 Published Updated

Attackers can inject malicious scripts into Live Helper Chat, potentially stealing user sessions or executing code in victim browsers.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2021-4179?

CVE-2021-4179 is a medium-severity cross-site scripting vulnerability in livehelperchat/livehelperchat, published on 28 Dec 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

livehelperchat is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Weakness: CWE-79

Which versions are affected by CVE-2021-4179?

1 open source package ship an affected version, including livehelperchat. It affects 1 product.

PackageAffectedFixed in
livehelperchat BitnamiAll versions3.91.0

Products include Livehelperchat Live Helper Chat.

How do I fix CVE-2021-4179?

Upgrade livehelperchat to 3.91.0 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-2021-4179 being exploited?

There is no known exploitation of CVE-2021-4179 in the wild and no public exploit code.

Sources

Also known as BIT-livehelperchat-2021-4179, GHSA-5x52-v7fr-j269.

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