CVE-2009-4363 Cross-site scripting in n/a

Medium 4.3 Published Updated

Remote attackers can execute cross-site scripting attacks via crafted data URIs in HTML emails, affecting Horde Groupware users.

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
Available

What is CVE-2009-4363?

CVE-2009-4363 is a medium-severity cross-site scripting vulnerability in n/a, published on 21 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

Text_Filter/lib/Horde/Text/Filter/Xss.php in Horde Application Framework before 3.3.6, Horde Groupware before 1.2.5, and Horde Groupware Webmail Edition before 1.2.5 does not properly handle data: URIs, which allows remote attackers to conduct cross-site scripting (XSS) attacks via data:text/html values for the HREF attribute of an A element in an HTML e-mail message. NOTE: the vendor states that the issue is caused by "an XSS vulnerability in Firefox browsers."

Weakness: CWE-79

Which versions are affected by CVE-2009-4363?

It affects 2 products.

Products include Horde Application Framework, Horde Groupware.

How do I fix CVE-2009-4363?

Upgrade to a fixed version.

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-2009-4363 being exploited?

There is no known exploitation of CVE-2009-4363 in the wild and no public exploit code.

Sources

Also known as GHSA-pjmv-2gvx-rph8.

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