CVE-2024-39311 Publify Vulnerable To Cross-Site Scripting (XSS) Via Redirects Requiring User Interaction

Low 1.8 Published Updated

A publisher can execute XSS on an administrator via malicious redirects, potentially escalating privileges to admin. Upgrade Publify to fix.

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

What is CVE-2024-39311?

CVE-2024-39311 is a low-severity cross-site scripting vulnerability in publify, published on 28 Mar 2025. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

Publify is a self hosted Web publishing platform on Rails. Prior to version 10.0.1 of Publify, corresponding to versions prior to 10.0.2 of the `publify_core` rubygem, publisher on a `publify` application is able to perform a cross-site scripting (XSS) attack on an administrator using the redirect functionality. The exploitation of this XSS vulnerability requires the administrator to click a malicious link. An attack could attempt to hide their payload by using HTML, or other encodings, as to not make it obvious to an administrator that this is a malicious link. A publisher may attempt to use this vulnerability to escalate their privileges and become an administrator. Version 10.0.1 of Publify and version 10.0.2 of the `publify_core` rubygem fix the issue.

Weakness: CWE-79

Which versions are affected by CVE-2024-39311?

2 open source packages ship an affected version, including publify_core. It affects 2 products.

PackageAffectedFixed in
publify_core RubyGemsAll versions10.0.2
publify_core RubyGemsAll versions10.0.2

Products include Publify Publify, Publify Publify Core.

How do I fix CVE-2024-39311?

Upgrade publify_core to 10.0.2 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-2024-39311 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-39311 exists.

Sources

Also known as GHSA-8fm5-gg2f-f66q.

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