// For flags

CVE-2021-23838

flatCore CMS XSS / File Disclosure / SQL Injection

Severity Score

4.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

2
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

An issue was discovered in flatCore before 2.0.0 build 139. A reflected XSS vulnerability was identified in the media_filter HTTP request body parameter for the acp interface. The affected parameter accepts malicious client-side script without proper input sanitization. For example, a malicious user can leverage this vulnerability to steal cookies from a victim user and perform a session-hijacking attack, which may then lead to unauthorized access to the site.

Se detectó un problema en flatCore versiones anteriores a 2.0.0 build 139. Se identificó una vulnerabilidad de tipo XSS reflejado en el parámetro del cuerpo de una petición HTTP media_filter para la interfaz acp. El parámetro afectado acepta scripts del lado del cliente malicioso sin un saneamiento de la entrada apropiado. Por ejemplo, un usuario malicioso puede aprovechar esta vulnerabilidad para robar cookies de un usuario víctima y llevar a cabo un ataque de secuestro de sesión, que luego puede conllevar a un acceso no autorizado al sitio

flatCore CMS versions prior to 2.0.0 build 139 suffer from cross site scripting, file disclosure, and remote SQL injection vulnerabilities.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
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
  • 2021-01-11 CVE Reserved
  • 2021-01-13 CVE Published
  • 2021-01-13 First Exploit
  • 2024-08-03 CVE Updated
  • 2024-12-17 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
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
Flatcore
Search vendor "Flatcore"
Flatcore
Search vendor "Flatcore" for product "Flatcore"
<= 2.0.0
Search vendor "Flatcore" for product "Flatcore" and version " <= 2.0.0"
-
Affected