CVE-2022-4148Public exploitNetwork attack vector

Authenticated OAuth client deletion via unchecked AJAX request

Published Mar 20, 2023 · Updated Feb 26, 2025

Missing authorization in WP OAuth Server before 4.3.0 allows remote authenticated users to delete arbitrary OAuth clients via AJAX. The wo_remove_client action accepts a client_id at WordPress's admin-ajax.php endpoint and deletes that client without an effective authorization check. Subscriber-level access is sufficient; deletion removes configured client records and can disrupt dependent OAuth integrations.

CVSS severity4.3
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in WP OAuth Server before 4.3.0 allows remote authenticated users to delete arbitrary OAuth clients via AJAX. The wo_remove_client action accepts a client_id at WordPress's admin-ajax.php endpoint and deletes that client without an effective authorization check. Subscriber-level access is sufficient; deletion removes configured client records and can disrupt dependent OAuth integrations.

The record

CVE
CVE-2022-4148
Published
Mar 20, 2023
Updated
Feb 26, 2025
Vendor
Jayson T Cote
Product
WP OAuth Server (OAuth Authentication)
Classifications
CWE-862, CWE-352, T1485
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 20, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 26, 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 <4.3.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Jayson T Cote · WP OAuth Server (OAuth Authentication)version=0 <4.3.0

Published CVSS scores

4.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
4.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/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.

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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-862Missing Authorization
CWE-352Cross-Site Request Forgery (CSRF)
T1485Data Destruction

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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