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GitHub_MCVE-2021-39201

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

CVE-2021-39201

2021-09-0922:15:09

CWE-79

GitHub_M

web.nvd.nist.gov

355

wordpress

cve-2021-39201

content management system

php

mysql

mariadb

xss vulnerability

security patch

CVSS2

3.5

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

CVSS3

7.6

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

AI Score

5.2

Confidence

High

EPSS

0.001

Percentile

43.7%

JSON

WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. ### Impact The issue allows an authenticated but low-privileged user (like contributor/author) to execute XSS in the editor. This bypasses the restrictions imposed on users who do not have the permission to post unfiltered_html. ### Patches This has been patched in WordPress 5.8, and will be pushed to older versions via minor releases (automatic updates). It’s strongly recommended that you keep auto-updates enabled to receive the fix. ### References https://wordpress.org/news/category/releases/ https://hackerone.com/reports/1142140 ### For more information If you have any questions or comments about this advisory: * Open an issue in HackerOne

Affected configurations

Nvd

Vulners

Node

wordpresswordpressRange5.0–5.8

Node

debiandebian_linuxMatch10.0

debiandebian_linuxMatch11.0

VendorProductVersionCPE
wordpresswordpress*cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*
debiandebian_linux10.0cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
debiandebian_linux11.0cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
wordpress	wordpress	*	cpe:2.3:a:wordpress:wordpress::::::::
debian	debian_linux	10.0	cpe:2.3:o:debian:debian_linux:10.0:::::::*
debian	debian_linux	11.0	cpe:2.3:o:debian:debian_linux:11.0:::::::*

CNA Affected

[
  {
    "product": "wordpress-develop",
    "vendor": "WordPress",
    "versions": [
      {
        "status": "affected",
        "version": ">= 5.0, < 5.8.0"
      }
    ]
  }
]