CVE-2021-47977 - CVE House
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Status published High CVE-2021-47977

WordPress Anti-Malware Security Bruteforce Firewall <= 4.20.72 Directory Traversal

Vulnerability Description

WordPress Plugin Anti-Malware Security and Bruteforce Firewall 4.20.59 contains a directory traversal vulnerability that allows unauthenticated attackers to read arbitrary files by manipulating the file parameter. Attackers can send requests to the duplicator_download action via admin-ajax.php with path traversal sequences to access sensitive system files outside the intended directory.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • TheSmuggler

Affected Vendor

Affected Software

Malware Security and Bruteforce Firewall
Vulnerable Versions:
0

Timeline

Official Publish: May 16th, 2026
Last Modified: May 25th, 2026
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weaknesses (CWE)