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[email protected]CVE-2021-39202

HistorySep 09, 2021 - 10:15 p.m.

CVE-2021-39202

2021-09-0922:15:09

CWE-79

[email protected]

web.nvd.nist.gov

wordpress

cve-2021-39202

php

mysql

mariadb

content management system

xss

security vulnerability

3.5 Low

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:S/C:N/I:P/A:N

7.6 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

LOW

Availability Impact

NONE

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

5.3 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

22.9%

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 the widgets editor introduced in WordPress 5.8 beta 1 has improper handling of HTML input in the Custom HTML feature. This leads to stored XSS in the custom HTML widget. This has been patched in WordPress 5.8. It was only present during the testing/beta phase of WordPress 5.8.

Affected configurations

NVD

Node

wordpresswordpressMatch5.8beta1

wordpresswordpressMatch5.8beta2

CPENameOperatorVersion
wordpress:wordpresswordpresseq5.8

CPE	Name	Operator	Version
wordpress:wordpress	wordpress	eq	5.8

CNA Affected

[
  {
    "product": "wordpress-develop",
    "vendor": "WordPress",
    "versions": [
      {
        "status": "affected",
        "version": "5.8 beta 1"
      },
      {
        "status": "affected",
        "version": "5.8 beta 2"
      }
    ]
  }
]