Actively exploited in the wild
WordPress File Manager Plugin Remote Code Execution Vulnerability
WordPress - File Manager Plugin · Listed in the CISA KEV since 2021-11-03. This indicates confirmed attacks in production environments.
Required action: Apply updates per vendor instructions.
CVE-2020-25213
CriticalCVSS 10.0KEVSummary
The File Manager (wp-file-manager) plugin before 6.9 for WordPress allows remote attackers to upload and execute arbitrary PHP code because it renames an unsafe example elFinder connector file to have the .php extension. It was exploited in the wild in August and September 2020.
Risk Assessment
The vulnerability enables remote code execution on the WordPress server, which may lead to full site takeover, backdoor installation and data theft.
Recommendation
Immediately update the wp-file-manager plugin to version 6.9 or later. Check the site for signs of compromise (unknown PHP files in the plugin directory) and remove any backdoors.
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Original NVD description (English source)
The File Manager (wp-file-manager) plugin before 6.9 for WordPress allows remote attackers to upload and execute arbitrary PHP code because it renames an unsafe example elFinder connector file to have the .php extension. This, for example, allows attackers to run the elFinder upload (or mkfile and put) command to write PHP code into the wp-content/plugins/wp-file-manager/lib/files/ directory. This was exploited in the wild in August and September 2020.