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CVE-2021-24129 Themify Portfolio Post < 1.1.6 - Authenticated Stored Cross-Site Scripting

Medium 5.4 Published Updated

Low-privileged users can inject malicious scripts into posts, potentially leading to privilege escalation in the Themify Portfolio Post plugin.

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-2021-24129?

CVE-2021-24129 is a medium-severity cross-site scripting vulnerability in Unknown Themify Portfolio Post, published on 18 Mar 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

Unvalidated input and lack of output encoding in the Themify Portfolio Post WordPress plugin, versions before 1.1.6, lead to Stored Cross-Site Scripting (XSS) vulnerabilities allowing low-privileged users (Contributor+) to inject arbitrary JavaScript code or HTML in posts where the Themify Custom Panel is embedded, which could lead to privilege escalation.

Weakness: CWE-79

Which versions are affected by CVE-2021-24129?

It affects 1 product.

Products include Themify Portfolio Post.

How do I fix CVE-2021-24129?

No fix has been published for CVE-2021-24129 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-2021-24129 being exploited?

There is no known exploitation of CVE-2021-24129 in the wild and no public exploit code.

Sources

Also known as GHSA-mv99-79gw-2g8g.

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