Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2020-4046

Severity CVSS v4.0:
Pending analysis
Type:
CWE-79 Cross-Site Scripting (XSS)
Publication date:
12/06/2020
Last modified:
07/11/2023

Description

In affected versions of WordPress, users with low privileges (like contributors and authors) can use the embed block in a certain way to inject unfiltered HTML in the block editor. When affected posts are viewed by a higher privileged user, this could lead to script execution in the editor/wp-admin. 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).

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N CVSS v3.1 Severity and Metrics:

Base Score: 5.40 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): Required
Scope (S): Changed
Confidentiality (C): Low
Integrity (I): Low
Availability (A): None

Base Score 3.x
5.40
Severity 3.x
MEDIUM
Vector 2.0
AV:N/AC:M/Au:S/C:N/I:P/A:N CVSS v2.0 Severity and Metrics:

Base Score: 3.50 LOW
Vector: AV:N/AC:M/Au:S/C:N/I:P/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): Single
Confidentiality (C): None
Integrity (I): Physical
Availability (A): None

Base Score 2.0
3.50
Severity 2.0
LOW

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* 3.7 (including) 3.7.34 (excluding)
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* 3.8 (including) 3.8.34 (excluding)
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* 3.9 (including) 3.9.32 (excluding)
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* 4.0 (including) 4.0.31 (excluding)
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* 4.1 (including) 4.1.31 (excluding)
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* 4.2 (including) 4.2.28 (excluding)
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* 4.3 (including) 4.3.24 (excluding)
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* 4.4 (including) 4.4.23 (excluding)
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* 4.5 (including) 4.5.22 (excluding)
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* 4.6 (including) 4.6.19 (excluding)
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* 4.7 (including) 4.7.18 (excluding)
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* 4.8 (including) 4.8.14 (excluding)
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* 4.9 (including) 4.9.15 (excluding)
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* 5.0 (including) 5.0.10 (excluding)
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* 5.1 (including) 5.1.6 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools