Horizon Alert
Summary of the vulnerability and why it matters
The File Manager plugin for WordPress has a vulnerability that allows remote attackers to upload and execute arbitrary PHP code. This occurs because the plugin renames an insecure example connector file to a PHP extension, enabling attackers to write malicious PHP code into specific plugin directories. This flaw can lead to unauthorized code execution and data manipulation.
- Vulnerable component: WordPress File Manager plugin
- Core weakness: Insecure renaming of connector file
- Main business impact: Arbitrary code execution and data compromise
Attack Path
How an attacker could exploit the issue
This vulnerability allows an attacker to upload and execute arbitrary PHP code on an affected system. The attack exploits a misconfiguration within the File Manager plugin, where an example connector file can be renamed to allow PHP execution. This can lead to unauthorized code execution and potential compromise of the affected WordPress site.
- Plugin accessible from network
- Attacker uploads PHP code
- Arbitrary code execution occurs
Live Threat
Current exploitation, exposure, and threat context
A critical vulnerability was identified in the WordPress File Manager plugin that could allow attackers to upload and execute arbitrary PHP code. Exploitation of this vulnerability was observed in the wild. The File Manager plugin, when used with certain configurations, renames an example connector file to have a .php extension, enabling attackers to write PHP code into the plugin's directory. This could lead to unauthorized code execution and potential compromise of affected systems.
- Likely attacker skill level: Low
- Required access or conditions: None
- Business risk or urgency: High
Priority actions
Operational Fix
Recommended remediation, mitigation, and detection steps
This vulnerability allows remote attackers to upload and execute arbitrary PHP code on affected systems. The exploitation of this vulnerability can lead to the compromise of system integrity and confidentiality. Organizations should take immediate action to identify and mitigate the risk posed by this vulnerability.
- Find affected WordPress installations.
- Isolate or disable the plugin.
- Apply vendor fix and verify.
- Monitor for related activity.
