CVE-2025-41039 Stored Cross-Site Scripting vulnerability in appRain CMF

Medium 5.1 Published 4 Sep 2025 Updated 4 Sep 2025

Authenticated attackers can inject malicious scripts via configuration parameters in appRain CMF, potentially leading to session hijacking or code execution.

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-2025-41039?

CVE-2025-41039 is a medium-severity cross-site scripting vulnerability in appRain CMF, published on 4 Sep 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

A vulnerability has been discovered in appRain CMF version 4.0.5, consisting of a stored authenticated XSS due to a lack of proper validation of user input, through the 'data[sconfig][admin_landing_page]', 'data[sconfig][currency]', 'data[sconfig][db_version]', 'data[sconfig][default_pagination]', 'data[sconfig][emailsetup_from_email]', 'data[sconfig][emailsetup_host]', 'data[sconfig][emailsetup_password]', 'data[sconfig][emailsetup_port]', 'data[sconfig][emailsetup_username]', 'data[sconfig][fileresource_id]', 'data[sconfig][large_image_height]', 'data[sconfig][large_image_width]' and 'data[sconfig][time_zone_padding]' parameters in /apprain/admin/config/opts.

Weakness: CWE-79

Which versions are affected by CVE-2025-41039?

It affects 1 product.

Products include Apprain Apprain.

How do I fix CVE-2025-41039?

No fix has been published for CVE-2025-41039 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-2025-41039 being exploited?

There is no known exploitation of CVE-2025-41039 in the wild and no public exploit code.

Sources

Also known as GHSA-69jr-88xm-wxcp.