CVE-2021-39203 Private data disclosure/privilege escalation through the block editor in Wordpress

2021-09-0922:00:11

CWE-200

GitHub_M

www.cve.org

cve-2021-39203

privilege escalation

wordpress 5.8

private data disclosure

block editor

mysql

CVSS3

6.8

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

AI Score

6.8

Confidence

High

EPSS

0.001

Percentile

28.4%

JSON

WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. In affected versions authenticated users who don’t have permission to view private post types/data can bypass restrictions in the block editor under certain conditions. This affected WordPress 5.8 beta during the testing period. It’s fixed in the final 5.8 release.

CNA Affected

[
  {
    "product": "wordpress-develop",
    "vendor": "WordPress",
    "versions": [
      {
        "status": "affected",
        "version": "5.8 beta 1"
      }
    ]
  }
]