WP OAuth Server <= 4.2.3 - Cross-Site Request Forgery to Arbitrary Post Deletion (wo_ajax_remove_client)

2023-02-21 00:00

István Márton

Strategic Overview

Status

Patched in 4.2.5

Affected PluginWP OAuth Server (OAuth Authentication)

Affected Version<= 4.2.3

CVSS6.5Medium

CVECVE-2022-3894

View all WP OAuth Server (OAuth Authentication) vulnerabilities

Vulnerability Overview

The WP OAuth Server plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 4.2.3. This is due to missing or incorrect nonce validation on the wo_ajax_remove_clientfunction. This makes it possible for unauthenticated attackers to delete arbitrary posts, via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Technical Analysis

REMEDIATION: Update to version 4.2.5, or a newer patched version --- IDENTIFIER: CWE-352 (Cross-Site Request Forgery (CSRF)) The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.

External References

https://www.cve.org/CVERecord?id=CVE-2022-3894 https://www.wordfence.com/threat-intel/vulnerabilities/id/3bf68449-487d-4ef1-86be-c51dc7d79054

CVSS Vector

6.5

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeUnchanged
ConfidentialityNone
IntegrityHigh
AvailabilityNone

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