Anti Hacker <= 4.19 — Missing Authorization to Arbitrary Plugin Install
CVE-2022-3880Published · Updated Action summary
Affected: ≤4.19Update to 4.20 or newer
All remediation steps- Severity
- Medium6.5
- CVSS
- 6.5CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:NWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:LPrivileges required- Low
UI:NUser interaction- None
S:UScope- Unchanged
C:NConfidentiality- None
I:HIntegrity- High
A:NAvailability- None
- Weakness
- CWE-284 Improper Access Control
- Required access
- Unknown
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
Disable Json API, Login Lockdown, XMLRPC, Pingback, Stop User Enumeration Anti Hacker Scan antihacker
- Affected≤ 4.19
- Patched in4.20
Update to 4.20 or newer.
You are affected if you run ≤ 4.19. Version 4.20 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Disable Json API, Login Lockdown, XMLRPC, Pingback, Stop User Enumeration Anti Hacker Scan.
- No admin access? Run a passive check of your site. It reads public files only.
What to do
- Update to version 4.20, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Disable Json API, Login Lockdown, XMLRPC, Pingback, Stop User Enumeration Anti Hacker Scan to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to István Márton.
The Anti Hacker plugin for WordPress is vulnerable to authorization bypass due to a missing capability check on the antihacker_install_plugin() function in versions up to, and including, 4.19. This makes it possible for authenticated attackers with minimal permission, such as a subscriber, to install arbitrary plugins on the vulnerable site. This could be used to install additional vulnerable plugins that could aid in further compromise of the site.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in Disable Json API, Login Lockdown, XMLRPC, Pingback, Stop User Enumeration Anti Hacker Scan
All 4| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium6.5 | Missing Authorization to Unauthenticated IP Address Whitelist ≤4.51Update to 4.52 | CVE-2024-1860 | |
| Medium4.3 | Missing Authorization to Authenticated (Subscriber+) Table Truncation ≤4.52Update to 4.53 | CVE-2024-1861 | |
| Medium4.3 | Cross-Site Request Forgery via antihacker_ajax_scan <4.35Update to 4.35 | CVE-2023-50858 |
- Medium6.5Missing Authorization to Unauthenticated IP Address Whitelist
≤4.51Update to 4.52
- Medium4.3Missing Authorization to Authenticated (Subscriber+) Table Truncation
≤4.52Update to 4.53
- Medium4.3Cross-Site Request Forgery via antihacker_ajax_scan
<4.35Update to 4.35
Timeline
CVE published
Severity medium, CVSS 6.5
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.