SEPTEMBER 15, 2026
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Case File

CVE-2026-77991

CRITICAL · CVSS 9.4 EPSS 0.41% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-27 · Last synced 2026-09-15

CyberRota Analysis

AI-Generated

The Joomla Event Manager extension prior to version 5.0.1 is vulnerable to privileged remote code execution due to its administrator source model, which permits the upload of dangerous file types, including PHP scripts. This flaw could allow attackers to execute arbitrary code on the server, potentially compromising the entire Joomla installation. Organizations using this extension should prioritize patching to mitigate the risk of exploitation.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
remote code execution code execution

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-77991
Severity
CRITICAL
CVSS
9.4
EPSS
0.41%

Original NVD 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.