CVE-2020-4047 Information

Description

In affected versions of WordPress authenticated users with upload permissions (like authors) are able to inject JavaScript into some media file attachment pages in a certain way. This can lead to script execution in the context of a higher privileged user when the file is viewed by them. This has been patched in version 5.4.2 along with all the previously affected versions via a minor release (5.3.4 5.2.7 5.1.6 5.0.10 4.9.15 4.8.14 4.7.18 4.6.19 4.5.22 4.4.23 4.3.24 4.2.28 4.1.31 4.0.31 3.9.32 3.8.34 3.7.34).

CVSS Vector

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

Reference

https://github.com/WordPress/wordpress-develop/commit/0977c0d6b241479ecedfe19e96be69f727c3f81f https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-8q2w-5m27-wm27 https://lists.debian.org/debian-lts-announce/2020/07/msg00000.html https://lists.debian.org/debian-lts-announce/2020/09/msg00011.html https://lists.fedoraproject.org/archives/list/[email protected]/message/773N2ZV7QEMBGKH6FBKI6Q5S3YJMW357/ https://lists.fedoraproject.org/archives/list/[email protected]/message/ODNHXVJS25YVWYQHOCICXTLIN5UYJFDN/ https://wordpress.org/news/2020/06/wordpress-5-4-2-security-and-maintenance-release/ https://www.debian.org/security/2020/dsa-4709

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

REQUIRED

Confidentiality Impact

CHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

6.8