# CVE-2026-117550: Joomla jDownloads file publication bypass with manipulated submission parameters

Source: https://junglewise.ai/threats/cve-2026-117550-joomla-extension-jdownloads-com-publishing-of-files-without  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-12. Updated: 2026-11-12  
License: CC BY 4.0 with a link back

CVE-2026-117550 · Severity: info · Published 2026-11-12

jDownloads is a file download management extension for Joomla that controls which files are published and who owns them. A vulnerability in versions before 4.1.8 allows attackers to manipulate frontend submission parameters to publish files without approval and assign incorrect ownership, even when automatic publication is disabled, potentially exposing unauthorized content.

Technologies: [jDownloads](https://junglewise.ai/threats/technologies/jdownloads). Vendors: [jDownloads](https://junglewise.ai/threats/vendors/jdownloads).

## Quick answers

**Is CVE-2026-117550 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-117550 being exploited in the wild.

**How severe is CVE-2026-117550?** Informational severity, published 12 November 2026.

**Which products and versions are affected?** jDownloads before 4.1.8.

**Is there a fix for CVE-2026-117550?** Yes: fixed in jDownloads 4.1.8. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-117550 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-117550?** Check whether you run jDownloads at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in jDownloads 4.1.8

## Technical details

The vulnerability exists in jDownloads' frontend submission handling, where insufficient validation of submission parameters allows attackers to bypass publication approval logic and ownership assignment rules. By crafting malicious frontend form submissions, an attacker can force files to be published regardless of the automatic publication setting and assign ownership contrary to site policy. This is a parameter manipulation vulnerability requiring only network access and the ability to submit forms.

## Affected products

- jdownloads jDownloads before 4.1.8

## Timeline

- 2026-11-12: disclosed
- 2026-11-12: patched

## References

- [https://www.jdownloads.com/](https://www.jdownloads.com/)

## Related threats

- [jDownloads IDOR in other_file_id parameter allows unauthorized file access](https://junglewise.ai/threats/cve-2026-117544-joomla-extension-jdownloads-com-idor-allowing-restricted-file)
- [jDownloads authenticated path traversal via update_file parameter](https://junglewise.ai/threats/cve-2026-117542-joomla-extension-jdownloads-com-authenticated-path-traversal-in)
- [Joomla jDownloads file upload RCE in thumbnail handling](https://junglewise.ai/threats/cve-2026-117551-joomla-extension-jdownloads-com-rce-through-file-upload-in)
- [Joomla jDownloads SSRF via external download URL](https://junglewise.ai/threats/cve-2026-117543-joomla-extension-jdownloads-com-ssrf-via-external-download-url)
- [jDownloads Joomla extension unauthenticated file upload in upload-handler.php](https://junglewise.ai/threats/cve-2026-61900-jdownloads-joomla-extension-unauthenticated-file-upload-in-upload)