CVE-2022-3880Public exploitNetwork attack vector

Subscriber-level plugin installation via unchecked AJAX handler

Published Dec 12, 2022 · Updated Apr 22, 2025

Incorrect authorization in Bill Minozzi Anti Hacker before 4.20 allows remote authenticated users to install plugins via AJAX. The antihacker_install_plugin() handler accepts a requested WordPress.org plugin slug without a capability check or CSRF protection. Subscriber-level access is enough, and successful use changes site code by installing and activating the chosen repository plugin.

CVSS severity6.5
Medium
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect authorization in Bill Minozzi Anti Hacker before 4.20 allows remote authenticated users to install plugins via AJAX. The antihacker_install_plugin() handler accepts a requested WordPress.org plugin slug without a capability check or CSRF protection. Subscriber-level access is enough, and successful use changes site code by installing and activating the chosen repository plugin.

The record

CVE
CVE-2022-3880
Published
Dec 12, 2022
Updated
Apr 22, 2025
Vendor
Bill Minozzi
Product
Anti Hacker
Classifications
CWE-863, CWE-352, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 12, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 22, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <4.20

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Bill Minozzi · Anti Hackerversion=0 <4.20

Published CVSS scores

6.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
6.5WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-863Incorrect Authorization
CWE-352Cross-Site Request Forgery (CSRF)
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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