CVE-2026-22799
HIGHCVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
4Description
Emlog is an open source website building system. emlog v2.6.1 and earlier exposes a REST API endpoint (/index.php?rest-api=upload) for media file uploads. The endpoint fails to implement proper validation of file types, extensions, and content, allowing authenticated attackers (with a valid API key or admin session cookie) to upload arbitrary files (including malicious PHP scripts) to the server. An attacker can obtain the API key either by gaining administrator access to enable the REST API setting, or via information disclosure vulnerabilities in the application. Once uploaded, the malicious PHP file can be executed to gain remote code execution (RCE) on the target server, leading to full server compromise.
Analysis
Remote code execution in Emlog v2.6.1 and earlier allows authenticated attackers to upload arbitrary files through an insufficiently validated REST API endpoint (/index.php?rest-api=upload), enabling malicious PHP execution on the server. Attackers can exploit this by obtaining valid API credentials through administrator access or information disclosure flaws, then uploading executable scripts to achieve full system compromise. …
Sign in for full analysis, threat intelligence, and remediation guidance.
Remediation
Within 7 days: Identify all affected systems and apply vendor patches promptly. Review file handling controls and restrict upload directories.
Sign in for detailed remediation steps.
Priority Score
Share
External POC / Exploit Code
Leaving vuln.today