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Protect WP Admin <= 3.6 — Unauthenticated Plugin Deactivation

CVE-2021-24906Published · Updated

Action summary

Affected: ≤3.6Update to 3.7 or newer

All remediation steps
Severity
High7.5
CVSS
7.5
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
What does this vector mean?
AV:N Attack vector
Network
AC:L Attack complexity
Low
PR:N Privileges required
None
UI:N User interaction
None
S:U Scope
Unchanged
C:N Confidentiality
None
I:H Integrity
High
A:N Availability
None
Weakness
CWE-863 Incorrect Authorization
Required access
No account needed
Exploit prediction (EPSS)
No score
CISA KEV
Not listed

Am I affected?

Protect WP Admin protect-wp-admin

  1. Affected≤ 3.6
  2. Patched in3.7

Update to 3.7 or newer.

You are affected if you run ≤ 3.6. Version 3.7 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Protect WP Admin.
  • No admin access? Run a passive check of your site. It reads public files only.
  • No account is needed to exploit this. Treat any exposed site on an affected version as at risk.

What to do

  1. Update to version 3.7, or a newer patched version
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch Protect WP Admin to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to Krzysztof Zając.

The Protect WP Admin WordPress plugin before 3.7 does not check for authorisation in the lib/pwa-deactivate.php file, which could allow unauthenticated users to disable the plugin (and therefore the protection offered) via a crafted request

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

More in Protect WP Admin

All 4
More vulnerabilities in Protect WP Admin
SeverityVulnerabilityCVEPublished
Medium5.3Missing Authorization
≤4.1Update to 4.2
CVE-2025-64249
Medium5.3Unauthenticated Information Disclosure to Protection Bypass
≤3.8Update to 4.0
CVE-2023-3139
Medium6.1Cross-Site Scripting
≤3.7Update to 3.8
—

Timeline

  1. CVE published

    Severity high, CVSS 7.5

  2. Record last updated

Sources & licenses

Wordfence record
Vulnerability data
Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
CVE® identifiers
Copyright 1999-2026 The MITRE Corporation. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
CVSS / CWE
National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
VulnCrest content
Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.

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