CVE-2023-0143 Send PDF for Contact Form 7 < 0.9.9.2 - Contributor+ Stored XSS via Shortcode

Medium 5.4 Published Updated

Contributors can inject malicious scripts via shortcode attributes, potentially compromising admin accounts in Send PDF for Contact Form 7.

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
None listed

What is CVE-2023-0143?

CVE-2023-0143 is a medium-severity cross-site scripting vulnerability in Unknown Send PDF for Contact Form 7, published on 6 Feb 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

The Send PDF for Contact Form 7 WordPress plugin before 0.9.9.2 does not validate and escape some of its shortcode attributes before outputting them back in the page, which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attacks which could be used against high privilege users such as admins.

Which versions are affected by CVE-2023-0143?

It affects 1 product.

Products include Send Pdf for Contact Form 7 Project Send Pdf for Contact Form 7.

How do I fix CVE-2023-0143?

No fix has been published for CVE-2023-0143 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-2023-0143 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-0143 exists.

Sources

Also known as GHSA-8379-j3pg-g4h6.

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