TI-2022-03571 Aliases CVE-2022-3894 GHSA-r88p-4gjh-7prw

WP OAuth Server < 4.2.5 - Arbitrary Post Deletion via CSRF

MEDIUM 53Published 2023-03-20 · Updated 2025-02-26

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: None · Low · None
Fix status: Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

The WP OAuth Server (OAuth Authentication) WordPress plugin before 4.2.5 does not have CSRF check when deleting a client, and does not ensure that the object to be deleted is actually a client, which could allow attackers to make a logged in admin delete arbitrary client and post via a CSRF attack.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00252 16th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA and NVD

Fix Fixed WP OAuth Server (OAuth Authentication) (Unknown): 4.2.5

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Unknown	WP OAuth Server (OAuth Authentication)	before 4.2.5	4.2.5	Patch available	CNA

WP OAuth Server (OAuth Authentication) VendorUnknown Affected before 4.2.5 Fixed in 4.2.5 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:dash10:oauth_server::::::wordpress::*	before 4.2.5	Vulnerable	Dash10

cpe:2.3:a:dash10:oauth_server:*:*:*:*:*:wordpress:*:* Versions before 4.2.5 Vulnerable ·Dash10

Remediation

Fix · CNA WP OAuth Server (OAuth Authentication) (Unknown) Fixed in 4.2.5

Timeline

2026-10-02 Threatist record created from CVE-2022-3894
2026-10-03 Alias added: GHSA-r88p-4gjh-7prw

References

Exploit 1

https://wpscan.com/vulnerability/298487b2-4141-4c9f-9bb2-e1450aefc1a8

TI-2022-03794 WP OAuth Server < 4.3.0 - Subscriber+ Arbitrary Client Deletion CVSS 3.1MEDIUM 4.3
TI-2015-07812 The oauth2-provider plugin before 3.1.5 for WordPress has incorrect generation of random numbers. CVSS 3.1CRITICAL 9.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences