CVE-2020-4046
Authenticated XSS through embed block in WordPress
Severity Score
5.4
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
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).
En las versiones afectadas de WordPress, los usuarios con pocos privilegios (como colaboradores y autores) pueden usar el bloque incorporado de determinada manera para inyectar HTML no filtrado en el editor de bloques. Cuando las publicaciones afectadas son vistas por un usuario con mayores privilegios, esto podría conllevar a una ejecución de script en el archivo editor/wp-admin. Esto ha sido parcheado en la versión 5.4.2, junto con todas las versiones afectadas anteriormente por medio de una versión menor (versiones 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)
*Credits:
Sam Thomas
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2019-12-30 CVE Reserved
- 2020-06-10 CVE Published
- 2023-11-08 EPSS Updated
- 2024-08-04 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
- CWE-80: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
CAPEC
References (6)
| URL | Tag | Source |
|---|---|---|
| https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-rpwf-hrh2-39jf | Third Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2020/07/msg00000.html | Mailing List |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Wordpress Search vendor "Wordpress" | Wordpress Search vendor "Wordpress" for product "Wordpress" | >= 3.7 < 3.7.34 Search vendor "Wordpress" for product "Wordpress" and version " >= 3.7 < 3.7.34" | - |
Affected
| ||||||
| Wordpress Search vendor "Wordpress" | Wordpress Search vendor "Wordpress" for product "Wordpress" | >= 3.8 < 3.8.34 Search vendor "Wordpress" for product "Wordpress" and version " >= 3.8 < 3.8.34" | - |
Affected
| ||||||
| Wordpress Search vendor "Wordpress" | Wordpress Search vendor "Wordpress" for product "Wordpress" | >= 3.9 < 3.9.32 Search vendor "Wordpress" for product "Wordpress" and version " >= 3.9 < 3.9.32" | - |
Affected
| ||||||
| Wordpress Search vendor "Wordpress" | Wordpress Search vendor "Wordpress" for product "Wordpress" | >= 4.0 < 4.0.31 Search vendor "Wordpress" for product "Wordpress" and version " >= 4.0 < 4.0.31" | - |
Affected
| ||||||
| Wordpress Search vendor "Wordpress" | Wordpress Search vendor "Wordpress" for product "Wordpress" | >= 4.1 < 4.1.31 Search vendor "Wordpress" for product "Wordpress" and version " >= 4.1 < 4.1.31" | - |
Affected
| ||||||
| Wordpress Search vendor "Wordpress" | Wordpress Search vendor "Wordpress" for product "Wordpress" | >= 4.2 < 4.2.28 Search vendor "Wordpress" for product "Wordpress" and version " >= 4.2 < 4.2.28" | - |
Affected
| ||||||
| Wordpress Search vendor "Wordpress" | Wordpress Search vendor "Wordpress" for product "Wordpress" | >= 4.3 < 4.3.24 Search vendor "Wordpress" for product "Wordpress" and version " >= 4.3 < 4.3.24" | - |
Affected
| ||||||
| Wordpress Search vendor "Wordpress" | Wordpress Search vendor "Wordpress" for product "Wordpress" | >= 4.4 < 4.4.23 Search vendor "Wordpress" for product "Wordpress" and version " >= 4.4 < 4.4.23" | - |
Affected
| ||||||
| Wordpress Search vendor "Wordpress" | Wordpress Search vendor "Wordpress" for product "Wordpress" | >= 4.5 < 4.5.22 Search vendor "Wordpress" for product "Wordpress" and version " >= 4.5 < 4.5.22" | - |
Affected
| ||||||
| Wordpress Search vendor "Wordpress" | Wordpress Search vendor "Wordpress" for product "Wordpress" | >= 4.6 < 4.6.19 Search vendor "Wordpress" for product "Wordpress" and version " >= 4.6 < 4.6.19" | - |
Affected
| ||||||
| Wordpress Search vendor "Wordpress" | Wordpress Search vendor "Wordpress" for product "Wordpress" | >= 4.7 < 4.7.18 Search vendor "Wordpress" for product "Wordpress" and version " >= 4.7 < 4.7.18" | - |
Affected
| ||||||
| Wordpress Search vendor "Wordpress" | Wordpress Search vendor "Wordpress" for product "Wordpress" | >= 4.8 < 4.8.14 Search vendor "Wordpress" for product "Wordpress" and version " >= 4.8 < 4.8.14" | - |
Affected
| ||||||
| Wordpress Search vendor "Wordpress" | Wordpress Search vendor "Wordpress" for product "Wordpress" | >= 4.9 < 4.9.15 Search vendor "Wordpress" for product "Wordpress" and version " >= 4.9 < 4.9.15" | - |
Affected
| ||||||
| Wordpress Search vendor "Wordpress" | Wordpress Search vendor "Wordpress" for product "Wordpress" | >= 5.0 < 5.0.10 Search vendor "Wordpress" for product "Wordpress" and version " >= 5.0 < 5.0.10" | - |
Affected
| ||||||
| Wordpress Search vendor "Wordpress" | Wordpress Search vendor "Wordpress" for product "Wordpress" | >= 5.1 < 5.1.6 Search vendor "Wordpress" for product "Wordpress" and version " >= 5.1 < 5.1.6" | - |
Affected
| ||||||
| Wordpress Search vendor "Wordpress" | Wordpress Search vendor "Wordpress" for product "Wordpress" | >= 5.2 < 5.2.7 Search vendor "Wordpress" for product "Wordpress" and version " >= 5.2 < 5.2.7" | - |
Affected
| ||||||
| Wordpress Search vendor "Wordpress" | Wordpress Search vendor "Wordpress" for product "Wordpress" | >= 5.3.0 < 5.3.4 Search vendor "Wordpress" for product "Wordpress" and version " >= 5.3.0 < 5.3.4" | - |
Affected
| ||||||
| Wordpress Search vendor "Wordpress" | Wordpress Search vendor "Wordpress" for product "Wordpress" | >= 5.4 < 5.4.2 Search vendor "Wordpress" for product "Wordpress" and version " >= 5.4 < 5.4.2" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0" | - |
Affected
| ||||||
| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 31 Search vendor "Fedoraproject" for product "Fedora" and version "31" | - |
Affected
| ||||||
| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 32 Search vendor "Fedoraproject" for product "Fedora" and version "32" | - |
Affected
| ||||||