CVE-2023-3521 Cross-site Scripting (XSS) - Reflected in fossbilling/fossbilling

Medium 5.4 Published Updated

Reflected Cross-Site Scripting in FOSSBilling allows attackers to execute arbitrary scripts in victim browsers, potentially leading to session hijacking or data theft.

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
None listed

What is CVE-2023-3521?

CVE-2023-3521 is a medium-severity cross-site scripting vulnerability in fossbilling/fossbilling, published on 6 Jul 2023. 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

Cross-site Scripting (XSS) - Reflected in GitHub repository fossbilling/fossbilling prior to 0.5.4.

Weakness: CWE-79

Which versions are affected by CVE-2023-3521?

It affects 1 product.

Products include Fossbilling Fossbilling.

How do I fix CVE-2023-3521?

No fix has been published for CVE-2023-3521 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-2023-3521 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-3521 exists.

Public exploit code: 1 Nuclei template.

Sources

Also known as GHSA-f2hf-p7mp-7x9v.

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