CVE-2023-4493 Easy Address Book Web Server Stored XSS vulnerability

Medium 6.1 Published Updated

Remote attackers can inject malicious JavaScript into user profile fields, leading to script execution when the page is loaded.

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-2023-4493?

CVE-2023-4493 is a medium-severity cross-site scripting vulnerability in EFS Software Easy Address Book Web Server, published on 4 Oct 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

Stored Cross-Site Scripting in Easy Address Book Web Server 1.6 version, through the users_admin.ghp file that affects multiple parameters such as (firstname, homephone, lastname, lastname, middlename, workaddress, workcity, workcountry, workphone, workstate, workzip). This vulnerability allows a remote attacker to store a malicious JavaScript payload in the application to be executed when the page is loaded, resulting in an integrity impact.

Weakness: CWE-79

Which versions are affected by CVE-2023-4493?

It affects 1 product.

Products include Easy Address Book Web Server Project Easy Address Book Web Server.

How do I fix CVE-2023-4493?

No fix has been published for CVE-2023-4493 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-2023-4493 being exploited?

There is no known exploitation of CVE-2023-4493 in the wild and no public exploit code.

Sources

Also known as GHSA-fm79-j79q-pp27.

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