Description
In in wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php in WordPress 3.7 to 5.3.0, authenticated users who do not have the rights to publish a post are able to mark posts as sticky or unsticky via the REST API. For example, the contributor role does not have such rights, but this allowed them to bypass that. This has been patched in WordPress 5.3.1, along with all the previous WordPress versions from 3.7 to 5.3 via a minor release.
Remediation
References
Related Vulnerabilities
IBM WebSEAL Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (CVE-2018-1886)
Atlassian Jira Server-Side Request Forgery (SSRF) Vulnerability (CVE-2019-20408)
Oracle JRE CVE-2022-21291 Vulnerability (CVE-2022-21291)
WordPress Plugin WPS Cleaner Multiple Cross-Site Request Forgery Vulnerabilities (1.4.4)