WordPress Core < 6.2.1 - Cross-Site Request Forgery

2023-05-16 00:00
John Blackbourn

Strategic Overview

Status
Patched in 4.1.38
Affected CoreWordPress 6.2
Affected Version4.1 – < 6.2.1 · 23 branches
CVSS4.3Medium
CVEN/A
View all WordPress 6.2 vulnerabilities

Vulnerability Overview

WordPress Core is vulnerable to Cross-Site Request Forgery due to missing nonce validation on the ‘wp_ajax_set_attachment_thumbnail’ AJAX function in versions up to, and including, 6.2. This allows unauthenticated users to update the thumbnail image associated with existing attachments, granted they can trick an authenticated user with appropriate permissions into performing an action, such as clicking a link. The impact of this vulnerability is incredibly minimal.

Technical Analysis

REMEDIATION: Update to one of the following versions, or a newer patched version: 4.1.38, 4.2.35, 4.3.31, 4.4.30, 4.5.29, 4.6.26, 4.7.26, 4.8.22, 4.9.23, 5.0.19, 5.1.16, 5.2.18, 5.3.15, 5.4.13, 5.5.12, 5.6.11, 5.7.9, 5.8.7, 5.9.6, 6.0.4, 6.1.2, 6.2.1 --- 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

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