CVE-2026-33739 FOG has Stored XSS in Multiple Management Pages
Attackers can inject malicious scripts into FOG management pages, potentially hijacking administrator sessions and executing arbitrary code.
- 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
- None listed
What is CVE-2026-33739?
CVE-2026-33739 is a medium-severity cross-site scripting vulnerability in fogproject, published on 27 Mar 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
FOG is a free open-source cloning/imaging/rescue suite/inventory management system. Prior to 1.5.10.1812, the listing tables on multiple management pages (Host, Storage, Group, Image, Printer, Snapin) are vulnerable to Stored Cross-Site Scripting (XSS), due to insufficient server-side parameter sanitization in record creations/updates and a lack of HTML escaping in listing tables. Version 1.5.10.1812 patches the issue.
Weakness: CWE-79
Which versions are affected by CVE-2026-33739?
It affects 1 product.
Products include Fogproject Fogproject.
How do I fix CVE-2026-33739?
No fix has been published for CVE-2026-33739 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-2026-33739 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-33739 exists.
Other vulnerabilities in fogproject
- CVE-2025-58443 FOG's authentication bypass leads to full SQL DB dump
- CVE-2024-39914 FOG has a command injection in /fog/management/export.php?filename=
- CVE-2024-42348 FOG leaks sensitive information (AD domain, username and password)
- CVE-2024-40645 FOG Authenticated File Upload RCE
- CVE-2021-32243 File upload in n/a
Sources
Also known as GHSA-8m2f-4x7g-p8f3.