CVE-2021-47979

WordPress · Plugin Backup and Restore

A vulnerability exists in the WordPress Plugin Backup and Restore, potentially allowing for unauthorized system access or data compromise.

Executive summary

A high-severity vulnerability in the WordPress Plugin Backup and Restore poses a significant risk to site integrity and data confidentiality.

Vulnerability

The vulnerability affects the Backup and Restore plugin for WordPress. Due to the lack of specific technical documentation, the authentication requirements and exact attack vector remain unverified.

Business impact

With a CVSS score of 8.8, this flaw represents a significant security risk. Successful exploitation could lead to full site compromise, unauthorized data exfiltration, or complete loss of backup integrity, potentially causing severe operational downtime and reputational damage.

Remediation

Immediate Action: Audit all installed WordPress plugins and update the Backup and Restore plugin to the latest available version provided by the developer.

Proactive Monitoring: Monitor server logs for unusual file modification patterns or unauthorized attempts to access backup directories.

Compensating Controls: Implement a Web Application Firewall (WAF) with updated rule sets to filter malicious traffic targeting common WordPress plugin vulnerabilities.

Exploitation status

Public Exploit Available: false

Analyst recommendation

The severity of this vulnerability necessitates immediate attention. Administrators should verify their current plugin version against the vendor's security advisory and apply updates immediately to mitigate the risk of compromise.