CVE-2007-4893 Cross-site scripting in n/a

Medium 4.3 Published Updated

Remote attackers can execute cross-site scripting attacks in WordPress by exploiting improper verification of unfiltered HTML privileges in post and page submissions.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2007-4893?

CVE-2007-4893 is a medium-severity cross-site scripting vulnerability in Wordpress Wordpress, published on 14 Sep 2007. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

wp-admin/admin-functions.php in Wordpress before 2.2.3 and Wordpress multi-user (MU) before 1.2.5a does not properly verify the unfiltered_html privilege, which allows remote attackers to conduct cross-site scripting (XSS) attacks via modified data to (1) post.php or (2) page.php with a no_filter field.

Weakness: CWE-352

Which versions are affected by CVE-2007-4893?

It affects 1 product.

Products include Wordpress Wordpress.

How do I fix CVE-2007-4893?

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-2007-4893 being exploited?

There is no known exploitation of CVE-2007-4893 in the wild and no public exploit code.

All Wordpress Wordpress vulnerabilities

Sources

Also known as DEBIAN-CVE-2007-4893, GHSA-hm63-rvp6-rvmj.

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