CVE-2020-28036: Debian Linux

Critical severity, CVSS 9.8. EPSS: 5.2% chance of exploitation in the next 30 days.

wp-includes/class-wp-xmlrpc-server.php in WordPress before 5.5.2 allows attackers to gain privileges by using XML-RPC to comment on a post.

Affected products

• Debian Debian Linux: version 10.0 only
• Fedoraproject Fedora: version 31 only; version 32 only; version 33 only
• WordPress WordPress: before 5.5.2 (fixed in 5.5.2)

Published 2020-11-02. Last modified 2026-06-17.