# CVE-2026-78435: Faveo Helpdesk Logo SettingsController.php unlink path traversal

> Remote attackers with permissions can exploit a path traversal in the logo handler to delete arbitrary files via the unlink function.

- **Severity:** Medium 5.1 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 24 Aug 2026
- **Updated:** 27 Aug 2026
- **Also known as:** GHSA-gcqg-5pvv-vcwv

## What is CVE-2026-78435?

CVE-2026-78435 is a medium-severity path traversal vulnerability in Faveo Helpdesk, published on 24 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

A vulnerability has been found in Faveo Helpdesk up to 2.0.3. Affected is the function unlink of the file app/Http/Controllers/Admin/helpdesk/SettingsController.php of the component Logo Handler. Such manipulation of the argument data1 leads to path traversal. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2026-78435?


## How do I fix CVE-2026-78435?

No fix has been published for CVE-2026-78435 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-78435 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-78435 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-78435 and fix it if it is affected.

What it is: CVE-2026-78435 is a medium-severity path traversal vulnerability in Faveo Helpdesk, published on 24 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-78435 exists.

Affected product: Faveo Helpdesk. 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-2026-78435/ (Markdown: https://insights.sbomify.com/CVE-2026-78435/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-78435
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-78435
- OSV: https://osv.dev/vulnerability/CVE-2026-78435

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-78435/
Summaries are generated and may contain mistakes; the official description above is the record.