CVE-2021-34190 Cross-site scripting in n/a

Medium 4.8 Published Updated

Attackers can execute arbitrary scripts in Issabel PBX via stored XSS in billing rate fields, potentially compromising user sessions.

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
None listed

What is CVE-2021-34190?

CVE-2021-34190 is a medium-severity cross-site scripting vulnerability in n/a, published on 6 Jul 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

A stored cross site scripting (XSS) vulnerability in index.php?menu=billing_rates of Issabel PBX version 4 allows attackers to execute arbitrary web scripts or HTML via a crafted payload entered into the "Name" or "Prefix" fields under the "Create New Rate" module.

Weakness: CWE-79

Which versions are affected by CVE-2021-34190?

It affects 1 product.

Products include Issabel Pbx.

How do I fix CVE-2021-34190?

No fix has been published for CVE-2021-34190 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-2021-34190 being exploited?

There is no known exploitation of CVE-2021-34190 in the wild and no public exploit code.

Sources

Also known as GHSA-8p87-gj5p-jx33.

Is CVE-2021-34190 in your software?

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