CVE Vulnerability

CVE-2021-39202

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.

3.5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 6.8 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

Scope

5.4 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.3 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References
Link Resource
https://hackerone.com/reports/1222797 Permissions Required
https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-fr6h-3855-j297 Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:wordpress:wordpress:5.8:beta2:*:*:*:*:*:*
cpe:2.3:a:wordpress:wordpress:5.8:beta1:*:*:*:*:*:*
Information

Published : 2021-09-09 10:15

Updated : 2021-09-24 01:53

NVD link : CVE-2021-39202

Mitre link : CVE-2021-39202

Products Affected
No products.
CWE
CWE-79