Paper/Archive/CVE-2026-77991

CVE-2026-77991

joomlaeventmanager.net JEM - Joomla Event Manager extension for Joomla — Joomla Extension - joomlaeventmanager.net - Privileged remote code execution in Joomla Event Manager < 5.0.1

EPSS 0.6%CVSS 9.4

critical.is priorityof 100

CVSS 9.4 (CNA)9.4 / 10 × 3028.2 Not in CISA KEV+300.0 EPSS percentile 50.8.508 × 2010.2 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource

JEM - Joomla Event Manager extension for Joomla1.0.0-5.0.0–CNA

Scores by source

Joomla (CNA)9.4CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

refjoomlaeventmanager.net