// For flags

CVE-2018-20149

WordPress Core < 5.0.1 - Stored Cross-Site Scripting via File Uploads

Severity Score

6.4
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

In WordPress before 4.9.9 and 5.x before 5.0.1, when the Apache HTTP Server is used, authors could upload crafted files that bypass intended MIME type restrictions, leading to XSS, as demonstrated by a .jpg file without JPEG data.

En WordPress, en versiones anteriores a la 4.9.9 y versiones 5.x anteriores a la 5.0.1, cuando se emplea el servidor HTTP de Apache, los autores podrĂ­an subir archivos arbitrarios que omiten las restricciones de tipo MIME planeadas, lo que conduce a Cross-Site Scripting (XSS). Esto queda demostrado por un archivo .jpg sin datos JPEG.

*Credits: Tim Coen,Slavco Mihajloski
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Attack Vector
Network
Attack Complexity
Medium
Authentication
Single
Confidentiality
None
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2018-12-12 CVE Published
  • 2018-12-14 CVE Reserved
  • 2024-05-06 EPSS Updated
  • 2024-08-05 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC
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"
< 4.9.9
Search vendor "Wordpress" for product "Wordpress" and version " < 4.9.9"
-
Affected
Wordpress
Search vendor "Wordpress"
Wordpress
Search vendor "Wordpress" for product "Wordpress"
>= 5.0 < 5.0.1
Search vendor "Wordpress" for product "Wordpress" and version " >= 5.0 < 5.0.1"
-
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