{"data":{"id":"CVE-2026-77991","cve_id":"CVE-2026-77991","title":"Privileged remote code execution in Joomla Event Manager < 5.0.1","summary":"Privileged remote code execution in Joomla Event Manager < 5.0.1","severity":"CRITICAL","cvss":{"score":9.4,"version":"4.0","vector":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","source":"nvd"},"published_at":"2026-08-27T06:17:28.970000Z","modified_at":"2026-08-28T16:09:10.947000Z","withdrawn_at":null,"is_joomla":true,"is_joomla_core":false,"relevance":"certain","product":"Extension Joomla — joomlaeventmanager.net","extension":{"type":null,"name":null},"sources":["nvd"],"source_count":1,"url":"https://cve.oyer.fr/cve/CVE-2026-77991","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.","cwe":["CWE-434"],"affected":[{"package":null,"product":"JEM - Joomla Event Manager extension for Joomla","vendor":"joomlaeventmanager.net","ecosystem":null,"cpe":null,"version_start":"1.0.0","version_end":"5.0.0","version_end_inclusive":true,"fixed_version":null,"type":null,"source":"nvd"}],"references":[{"url":"https://www.joomlaeventmanager.net/","title":null,"source":"nvd"}],"source_records":[{"source":"nvd","external_id":"CVE-2026-77991","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-77991","severity":"CRITICAL","cvss_score":9.4,"cvss_vector":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","cvss_version":"4.0","first_seen_at":"2026-09-26T09:34:34.096207Z","last_seen_at":"2026-09-26T09:34:34.096207Z"}],"history":[{"at":"2026-09-26T09:34:34.096207Z","event":"created","source":"nvd","detail":"Détectée via nvd"}]}}