$ cve CVE-2020-28036 JSON

CVE-2020-28036

9.8

CRITICAL · CVSS 3.1 · EPSS 5.2% (pctl 92)

In your normal cycle

Critical by CVSS (9.8), but no sign of active exploitation.

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.

CVSS	9.8 (CRITICAL, v3.1)
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS	5.22% — more likely to be exploited than 92% of all CVEs
Weakness	CWE-862
On CISA KEV	no
Public exploit	none known
Published	2020-11-02
Last modified	2026-06-17