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TI-2021-22590 Aliases CVE-2021-47977GHSA-2qf4-8g9v-6r55

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

Priority HIGH 77CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-22 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00652 51st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
GotmlsMalware Security and Bruteforce Firewallup to 4.20.72—No fix listedCNA
  • Malware Security and Bruteforce Firewall VendorGotmls Affected up to 4.20.72 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-47977
  2. 2026-10-03 Alias added: GHSA-2qf4-8g9v-6r55
  3. 2026-10-14 EPSS moved to the 50th–90th percentile

References

Exploit 1

Other 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences