CVE-2026-77991Joomla Extension - joomlaeventmanager.net - Privileged remote code execution in Joomla Event Manager < 5.0.1
Updated under an hour ago ()
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It affects joomlaeventmanager.net JEM - Joomla Event Manager extension for Joomla. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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
- 9.4 CRITICAL (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
- Weakness (CWE)
- CWE-434
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Joomla
- NVD analysis
- Deferred
- Record last updated
- Aug 28, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
joomlaeventmanager.net JEM - Joomla Event Manager extension for Joomla joomlaeventmanager.net:jem_joomla_event_manager_extension_for_joomla (from the name) | 1.0.0-5.0.0 | CNA record |
References
- https://www.joomlaeventmanager.net/product
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.