high CVSS 8.8

CVE-2024-5080·PHP vulnerability

The wp-eMember WordPress plugin before 10.6.6 does not validate files to be uploaded, which could allow admins to upload arbitrary files such as PHP on the server

Severity
high
Software
PHP
Fixed in
10.6.6
Published
2024-07-13

Affected versions

Until: 10.6.6

Fixed in: 10.6.6

How to fix this CVE

Update the wp-eMember WordPress plugin to version 10.6.6 or later to enforce proper file upload validation. This vulnerability allows administrators to upload arbitrary files including PHP executables, which could lead to remote code execution on your web server. Immediately patch this plugin and review your file upload directories for suspicious files.

sudo dnf update php

Defensia detects this vulnerability

What an exploitation attempt looks like

Sample log line indicative of exploitation attempts:

POST /wp-admin/admin-ajax.php.*action=(upload|file_upload|media_upload).*\.php|POST request containing multipart/form-data with PHP file extension to /wp-content/plugins/wp-eMember/ directory

WAF mitigation (if patching is not yet possible)

Add this rule to your WAF to block exploitation attempts while you schedule the patch. 

Implement a ModSecurity/WAF rule to block file uploads with .php, .phtml, .php3, .php4, .php5, .phar extensions to /wp-content/plugins/wp-eMember/ paths. Example: SecRule FILES_TMPNAMES '@inspectFile /etc/modsecurity/php-executable-check.lua' 'id:1000,deny,status:403'

How to check if you are affected

  1. Check installed PHP version: php -v
  2. Verify wp-eMember plugin version by examining wp-content/plugins/wp-eMember/wp-eMember.php and looking for the plugin header comment containing 'Version'
  3. Search web server logs for POST requests to /wp-admin/admin-ajax.php or upload endpoints: grep -r 'POST.*upload' /var/log/apache2/access.log
  4. Confirm plugin is patched by checking the plugin update status in WordPress admin dashboard under Plugins menu

FAQ

What is CVE-2024-5080?

CVE-2024-5080 is a file upload validation bypass in the wp-eMember WordPress plugin that permits authenticated administrators to upload arbitrary file types, including executable PHP files, to the server without proper validation checks.

Is CVE-2024-5080 being actively exploited?

No, CVE-2024-5080 is not currently listed in the CISA Known Exploited Vulnerabilities catalog and no public exploits are available, though the vulnerability poses a significant risk if exploited by malicious admin accounts.

What versions of the wp-eMember plugin are affected by CVE-2024-5080?

All versions of wp-eMember prior to version 10.6.6 are vulnerable. Version 10.6.6 and later include the necessary file upload validation fixes.

How do I check if my server is vulnerable to CVE-2024-5080?

Navigate to your WordPress admin dashboard, go to Plugins, and locate wp-eMember. If the version number shown is below 10.6.6, your installation is vulnerable. You can also check the plugin file directly: grep 'Version:' /path/to/wp-content/plugins/wp-eMember/wp-eMember.php

Does Defensia detect CVE-2024-5080?

Yes — Defensia's CVE advisory scanner compares installed package versions against the NVD database. If wp-eMember is installed on a monitored server, CVE-2024-5080 will appear in your dashboard with remediation steps.

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References

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