CVE-2026-77991: CWE-434 Unrestricted Upload of File with Dangerous Type in joomlaeventmanager.net JEM - Joomla Event Manager extension for Joomla
Joomla Extension - joomlaeventmanager.net - Privileged remote code execution in Joomla Event Manager < 5.0.1 - The administrator source model allows to write dangerous file type incl. PHP, leading to remote code execution.
CVE-2026-77991: CWE-434 Unrestricted Upload of File with Dangerous Type in joomlaeventmanager.net JEM - Joomla Event Manager extension for Joomla
Description
Joomla Extension - joomlaeventmanager.net - Privileged remote code execution in Joomla Event Manager < 5.0.1 - The administrator source model allows to write dangerous file type incl. PHP, leading to remote code execution.
CVSS v4.0
Score 9.4critical
Affected software
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Joomla
- Date Reserved
- 2026-08-21T19:05:09.013Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a8fd7c3acd9273b49e17816
Added to database: 08/27/2026, 06:22:59 UTC
Last updated: 08/27/2026, 08:37:02 UTC
Views: 4
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