CVE-2009-4255 Cross-site scripting in n/a

Medium 4.3 Published Updated

Remote attackers can inject arbitrary web script or HTML via the created_by_alias parameter in the You!Hostit! template for Joomla.

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-2009-4255?

CVE-2009-4255 is a medium-severity cross-site scripting vulnerability in n/a, published on 10 Dec 2009. 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) vulnerability in the You!Hostit! template 1.0.1 for Joomla! allows remote attackers to inject arbitrary web script or HTML via the created_by_alias parameter in index.php.

Weakness: CWE-79

Which versions are affected by CVE-2009-4255?

It affects 1 product.

Products include Youjoomla You\!hostit\!.

How do I fix CVE-2009-4255?

No fix has been published for CVE-2009-4255 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-2009-4255 being exploited?

There is no known exploitation of CVE-2009-4255 in the wild and no public exploit code.

Sources

Also known as GHSA-667g-vr6p-5gvg.

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