# CVE-2026-65891: Path traversal in Joomla Content Editor (JCE) extension for Joomla

> Authenticated users can rename files to hidden names or overwrite existing files due to improper input validation in the JCE extension.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 29 Jul 2026
- **Updated:** 31 Jul 2026
- **Also known as:** GHSA-chfv-whhw-v522

## What is CVE-2026-65891?

CVE-2026-65891 is a medium-severity path traversal vulnerability in joomlacontenteditor.net Joomla Content Editor (JCE) extension for Joomla, published on 29 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Joomla Extension - joomlacontenteditor.net - Creation of hidden files and unintended file overwrite via rename function in Joomla Content Editor (JCE) < 2.20.2 - Improper input validation in the file rename functionality allowed an authenticated user with file management permissions to rename files to otherwise invalid names, resulting in the creation of hidden files. The issue also allowed existing files at the destination path to be unintentionally replaced.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2026-65891?

It affects 1 product.


Products: Widgetfactorylimited Jce.

## How do I fix CVE-2026-65891?

No fix has been published for CVE-2026-65891 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-65891 being exploited?

There is no known exploitation of CVE-2026-65891 in the wild and no public exploit code.

Public exploit code:

- CVE-2026-65891 PoC — Joomla Content Editor file rename vulnerability (auth required, fixed in JCE 2.20.2) (github_poc): https://github.com/murrez/CVE-2026-65891

## Other vulnerabilities in joomlacontenteditor.net Joomla Content Editor (JCE) extension for Joomla

- [CVE-2026-48907](https://insights.sbomify.com/CVE-2026-48907/): Widget Factory Joomla Content Editor Improper Access Control (critical 10.0, exploited in the wild)
- [CVE-2015-7339](https://insights.sbomify.com/CVE-2015-7339/): File upload in n/a (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-65891 and fix it if it is affected.

What it is: CVE-2026-65891 is a medium-severity path traversal vulnerability in joomlacontenteditor.net Joomla Content Editor (JCE) extension for Joomla, published on 29 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-65891 in the wild and no public exploit code.

Affected product: joomlacontenteditor.net Joomla Content Editor (JCE) extension for Joomla. 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-2026-65891/ (Markdown: https://insights.sbomify.com/CVE-2026-65891/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-65891
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-65891
- OSV: https://osv.dev/vulnerability/CVE-2026-65891

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-65891/
Summaries are generated and may contain mistakes; the official description above is the record.