# 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.

- **Severity:** Medium 5.7 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:L/A:L`)
- **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:** No
- **Published:** 27 Mar 2026
- **Updated:** 27 Mar 2026
- **Also known as:** GHSA-8m2f-4x7g-p8f3

## 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 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2026-33739?

It affects 1 product.


Products: 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.

## 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](https://insights.sbomify.com/CVE-2025-58443/): FOG's authentication bypass leads to full SQL DB dump (critical 9.9)
- [CVE-2024-39914](https://insights.sbomify.com/CVE-2024-39914/): FOG has a command injection in /fog/management/export.php?filename= (critical 9.8)
- [CVE-2024-42348](https://insights.sbomify.com/CVE-2024-42348/): FOG leaks sensitive information (AD domain, username and password) (critical 9.3)
- [CVE-2024-40645](https://insights.sbomify.com/CVE-2024-40645/): FOG Authenticated File Upload RCE (high 8.8)
- [CVE-2021-32243](https://insights.sbomify.com/CVE-2021-32243/): File upload in n/a (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-33739 and fix it if it is affected.

What it is: 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.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-33739 exists.

Affected product: fogproject. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-33739/ (Markdown: https://insights.sbomify.com/CVE-2026-33739/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-33739
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-33739
- OSV: https://osv.dev/vulnerability/CVE-2026-33739

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-33739/
Summaries are generated and may contain mistakes; the official description above is the record.