# CVE-2026-48906: Extension - tassos.gr - Arbitrary File Deletion in Novarain/Tassos Framework < 6.1.0 for Joomla

> Attackers can delete arbitrary files on Joomla sites using the Novarain/Tassos Framework plugin, potentially compromising site integrity.

- **Severity:** Critical 9.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H/AU:Y`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 27 May 2026
- **Updated:** 5 Jun 2026
- **Also known as:** GHSA-wfvx-j6wj-x7w9

## What is CVE-2026-48906?

CVE-2026-48906 is a critical path traversal vulnerability in tassos.gr Advanced Custom Fields, published on 27 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The vulnerability in the Tassos Framework Plugin allows users to delete arbitrary files on the affected sites.

Weakness: CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2026-48906?

It affects 8 products.


Products: Tassos Advanced Custom Fields, Tassos Convert Forms, Tassos Engagebox, Tassos Google Structured Data, Tassos Mailchimp Auto-Subscribe, Tassos Smile Pack, Tassos Tassos Code Snippets, Tassos Tassos Framework.

## How do I fix CVE-2026-48906?

No fix has been published for CVE-2026-48906 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-48906 being exploited?

There is no known exploitation of CVE-2026-48906 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-48906 and fix it if it is affected.

What it is: CVE-2026-48906 is a critical path traversal vulnerability in tassos.gr Advanced Custom Fields, published on 27 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-48906 in the wild and no public exploit code.

Affected product: tassos.gr Advanced Custom Fields. 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-2026-48906/ (Markdown: https://insights.sbomify.com/CVE-2026-48906/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-48906
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-48906
- OSV: https://osv.dev/vulnerability/CVE-2026-48906

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-48906/
Summaries are generated and may contain mistakes; the official description above is the record.