CVE-2021-47977
📛 CVE Title
(no title)
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.
Overview
- State
- —
- Assigner (CNA)
- —
- CVSS severity
- high
- CVSS score
- 7.5 / 10
- CVSS vector
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N- Effective score
- 7.5 / 10 HIGH source: CNA overview
- CWE(s)
- —
- Reserved
- —
- Published
- —
- Last updated
- —
- Source
- https://www.tenable.com/cve/CVE-2021-47977
- Linked Threat
- CVE-2021-47977 — CVE-2021-47977
NVD triage scoring NVD CVE 2.0
Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.
- NVD published
- 2026-05-16 16:16:23 UTC
- NVD last modified
- 2026-06-17 04:18:51 UTC
- NVD CVSS v3.1
- 7.5 / 10 HIGH source: disclosure@vulncheck.com
- NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N- Exploitability subscore
- 3.9 / 10
- Impact subscore
- 3.6 / 10
- EPSS score
- 0.0065 (probability of exploitation in next 30 days)
- EPSS percentile
- 47.69% vs all CVEs — higher = more likely to be exploited, as of 2026-08-01
NVD-assigned CWE(s):
CWE-22
(differs from the CNA list above)
NVD / KEV / EPSS data refreshed 2026-08-01 17:17 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.
European Union Vulnerability Database ENISA EUVD
ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.
- EUVD ID
-
EUVD-2021-34837 - Assigner
- VulnCheck
- Published
- May 16, 2026, 3:28:13 PM
- Updated
- Jul 28, 2026, 1:47:32 AM
- EUVD base score (CVSS 4.0)
-
8.7 / 10
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N - EUVD-reported EPSS
- 0.6500
- Vendors
- Gotmls
- Products
-
Malware Security and Bruteforce Firewall (0 ≤4.20.72)
- Aliases
-
GHSA-2qf4-8g9v-6r55
ENISA 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.
Vendor references (0)
References embedded in the original CVE record by the assigning CNA.
None in the CVE record.
Web references (7)
DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.
- https://gotmls.net/ tenable:gotmls.net
- https://gotmls.net/downloads/ tenable:gotmls.net
- https://nvd.nist.gov/vuln/detail/CVE-2021-47977 tenable:nvd.nist.gov
- https://www.cve.org/CVERecord?id=CVE-2021-47977 tenable:www.cve.org
- https://www.exploit-db.com/exploits/50107 tenable:www.exploit-db.com
- https://www.first.org/epss/ tenable:www.first.org
- https://www.vulncheck.com/advisories/wordpress-anti-malware-security-bruteforce-firewall-directory-traversal tenable:www.vulncheck.com
NVD-tagged references (4)
Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.
- https://gotmls.net/ disclosure@vulncheck.com
- https://gotmls.net/downloads/ disclosure@vulncheck.com
- https://www.exploit-db.com/exploits/50107 disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/wordpress-anti-malware-security-bruteforce-firewall-directory-traversal disclosure@vulncheck.com
Remediations (10)
Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.
-
web:blog.qualys.com
Key Takeaways RedSun is a critical zero-day vulnerability in Microsoft Defender that allows low-privileged users to gain SYSTEM access No patch is currently available, leaving all Defender-enabled Windows systems potentially exposed Qualys VMDR detects affected assets instantly (QID 92382) TruRisk™ Eliminate enables immediate mitigation , removing exploitability without waiting for a fix ...
2026-06-03 22:32 UTC -
web:petri.com
If a Group Policy setting is available to roll back a fix , it is included in the Windows Update KB article and release notes as a mitigation for a known issue.
2026-06-03 22:32 UTC -
web:portal.msrc.microsoft.com
The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.
2026-06-03 22:32 UTC -
web:support.microsoft.com
It includes updates from previous security and non-security releases, along with an additional fix . To learn more about differences between security updates, optional non-security preview updates, out-of-band (OOB) updates, and continuous innovation, see Windows monthly updates explained.
2026-06-03 22:32 UTC -
web:translate.google.com
Google's service, offered free of charge, instantly translates words, phrases, and web pages between English and over 100 other languages.
2026-06-03 22:32 UTC -
web:windowsforum.com
Repair Windows Update Components with DISM + SFC (Win10/11) to Fix Update Errors Difficulty: Intermediate | Time Required: 20 minutes Windows Update errors often come down to corrupted system files or a damaged component store (the Windows image that updates rely on).
2026-06-03 22:32 UTC -
web:www.howtogeek.com
In this case, use your PC's built-in Windows Update troubleshooter to automatically find and fix issues with your updates. Only a little interaction is required from your end. To run that tool, go to Settings > Update & Security > Troubleshoot > Additional Troubleshooters > Windows Update and click "Run the Troubleshooter".
2026-06-03 22:32 UTC -
web:www.pcworld.com
Windows 11's Secure Boot fix update finally rolls out to more PCs Important security certificates for Windows 11 will soon expire for many users.
2026-06-03 22:32 UTC -
web:www.virustotal.com
VirusTotal is a platform for scanning files and URLs for viruses, malware, and other threats using multiple antivirus engines.
2026-06-03 22:32 UTC -
web:www.windowslatest.com
Windows 11 April 2026 update adds Narrator Copilot support, faster Settings, File Explorer fixes, and key security improvements.
2026-06-03 22:32 UTC
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