The WP Post Author plugin for WordPress is vulnerable to privilege escalation in versions up to, and including, 3.2.3. This is due to insufficient controls on the /set-user-data REST API endpoint. This makes it possible for authenticated attackers to set their user role to administrator and gain complete access to the site. Attackers can easily obtain authenticated access using the /v1/frontend/register-user REST API endpoint, even when registration is disabled on the site.
This vulnerability is a critical severity with CVSS 9.8 Privilege Escalation issue affecting the Plugin WP Post Author – Author Box, Multiple Authors, Guest Authors & Custom Avatars. It affects Versions up to 3.2.3 and is fixed in 3.3.0.
the tracked vulnerability is tracked for the Plugin WP Post Author – Author Box, Multiple Authors, Guest Authors & Custom Avatars as critical severity with CVSS 9.8. The affected range is Versions up to 3.2.3. Update WP Post Author – Author Box, Multiple Authors, Guest Authors & Custom Avatars to 3.3.0 or newer where that version is compatible with the site.
| Software Type | Plugin |
|---|---|
| Software Slug |
wp-post-author
View on wordpress.org
|
| CVE | No linked CVE entry. |
| Patched Versions |
3.3.0
|
| Affected Versions |
Versions up to 3.2.3
|
These internal links group the same WordPress plugin by CVE, issue type, severity, and patch status so operators and search engines can connect the full vulnerability cluster.
Boost Your Blog's Engagement with WP Post Author <= 3.8.1 - Authenticated (Administrator+) SQL Injection
WP Post Author <= 3.6.7 - Authenticated (Contributor+) Stored Cross-Site Scripting
WP Post Author <= 3.8.2 - Authenticated (Administrator+) SQL Injection
WP Post Author – Enhance Your Posts with the Author Bio, Co-Authors, Guest Authors, and Post Rating System, including User Registration Form Builder <= 3.7.4 - Missing Authorization
WP Post Author – Enhance Your Posts with the Author Bio, Co-Authors, Guest Authors, and Post Rating System, including User Registration Form Builder <= 3.6.4 - Missing Authorization to Rating Manipulation
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