Is there a public exploit for CVE-2026-117551?

No public exploit for CVE-2026-117551 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-117551?

CVE-2026-117551 scores CVSS 10 (v4.0), rated critical.

What does CVE-2026-117551 affect?

CVE-2026-117551 affects jdownloads.com jDownloads extension for Joomla.

10.0 Critical

Joomla Extension - jdownloads.com - RCE through file upload in jDownloads < 4.1.8 - Insufficient validation of frontend thumbnail uploads…

CVE-2026-117551

Joomla Extension - jdownloads.com - RCE through file upload in jDownloads < 4.1.8 - Insufficient validation of frontend thumbnail uploads allowed users with upload permission to place executable files on the server. This results in PHP code execution.

Assessment

CVSS: 10 (v4.0)
Severity: Critical
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 12 November 2026
Last updated: 13 November 2026
Affected: jdownloads.com · jDownloads extension for Joomla
Assigner: Joomla

CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/AU:Y

At the source

EUVD (ENISA)

References

https://www.jdownloads.com/

Community proofs of concept

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Query this programmatically

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