Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Informations
Name CVE-2021-23838 First vendor Publication 2021-01-15
Vendor Cve Last vendor Modification 2021-01-22

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Overall CVSS Score 4.8
Base Score 4.8 Environmental Score 4.8
impact SubScore 2.7 Temporal Score 4.8
Exploitabality Sub Score 1.7
 
Attack Vector Network Attack Complexity Low
Privileges Required High User Interaction Required
Scope Changed Confidentiality Impact Low
Integrity Impact Low Availability Impact None
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:S/C:N/I:P/A:N)
Cvss Base Score 3.5 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Medium
Cvss Expoit Score 6.8 Authentication Requires single instance
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23838

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-79 Failure to Preserve Web Page Structure ('Cross-site Scripting') (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 3

Sources (Detail)

Source Url
MISC http://packetstormsecurity.com/files/160936/flatCore-CMS-XSS-File-Disclosure-...
https://github.com/flatCore/flatCore-CMS
https://sec-consult.com/vulnerability-lab/

Alert History

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Date Informations
2021-05-04 14:06:42
  • Multiple Updates
2021-04-22 03:11:36
  • Multiple Updates
2021-01-22 21:23:30
  • Multiple Updates
2021-01-15 17:22:57
  • Multiple Updates
2021-01-15 12:32:50
  • First insertion