CVE-2007-3498 HTML Purifier Cross-site Scripting vulnerability

Medium 4.3 Published Updated

Remote attackers can inject arbitrary web script or HTML via unescaped print_r output in the configuration form, requiring user interaction to execute.

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-2007-3498?

CVE-2007-3498 is a medium-severity cross-site scripting vulnerability in n/a, published on 29 Jun 2007. 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 smoketests/configForm.php in HTML Purifier before 2.0.1 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors related to "unescaped print_r output."

Which versions are affected by CVE-2007-3498?

2 open source packages ship an affected version, including ezyang/htmlpurifier. It affects 1 product.

PackageAffectedFixed in
ezyang/htmlpurifier PackagistAll versions2.0.1
ezyang/htmlpurifier PackagistAll versions2.0.1

Products include Htmlpurifier Htmlpurifier.

How do I fix CVE-2007-3498?

Upgrade ezyang/htmlpurifier to 2.0.1 or later.

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-2007-3498 being exploited?

There is no known exploitation of CVE-2007-3498 in the wild and no public exploit code.

Sources

Also known as GHSA-6fh7-fwqj-mv49.

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