flatcore CVE Vulnerabilities & Metrics

Focus on flatcore vulnerabilities and metrics.

Last updated: 08 Mar 2025, 23:25 UTC

About flatcore Security Exposure

This page consolidates all known Common Vulnerabilities and Exposures (CVEs) associated with flatcore. We track both calendar-based metrics (using fixed periods) and rolling metrics (using gliding windows) to give you a comprehensive view of security trends and risk evolution. Use these insights to assess risk and plan your patching strategy.

For a broader perspective on cybersecurity threats, explore the comprehensive list of CVEs by vendor and product. Stay updated on critical vulnerabilities affecting major software and hardware providers.

Global CVE Overview

Total flatcore CVEs: 23
Earliest CVE date: 14 Apr 2017, 18:59 UTC
Latest CVE date: 16 Feb 2023, 16:15 UTC

Latest CVE reference: CVE-2021-40555

Rolling Stats

30-day Count (Rolling): 0
365-day Count (Rolling): 0

Calendar-based Variation

Calendar-based Variation compares a fixed calendar period (e.g., this month versus the same month last year), while Rolling Growth Rate uses a continuous window (e.g., last 30 days versus the previous 30 days) to capture trends independent of calendar boundaries.

Variations & Growth

Month Variation (Calendar): 0%
Year Variation (Calendar): 0%

Month Growth Rate (30-day Rolling): 0.0%
Year Growth Rate (365-day Rolling): 0.0%

Monthly CVE Trends (current vs previous Year)

Annual CVE Trends (Last 20 Years)

Critical flatcore CVEs (CVSS ≥ 9) Over 20 Years

CVSS Stats

Average CVSS: 4.96

Max CVSS: 9.0

Critical CVEs (≥9): 2

CVSS Range vs. Count

Range Count
0.0-3.9 7
4.0-6.9 12
7.0-8.9 2
9.0-10.0 2

CVSS Distribution Chart

Top 5 Highest CVSS flatcore CVEs

These are the five CVEs with the highest CVSS scores for flatcore, sorted by severity first and recency.

All CVEs for flatcore

CVE-2021-40555 flatcore vulnerability CVSS: 0 16 Feb 2023, 16:15 UTC

Cross site scripting (XSS) vulnerability in flatCore-CMS 2.2.15 allows attackers to execute arbitrary code via description field on the new page creation form.

CVE-2022-43118 flatcore vulnerability CVSS: 0 09 Nov 2022, 16:15 UTC

A cross-site scripting (XSS) vulnerability in flatCore-CMS v2.1.0 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the Username text field.

CVE-2021-41402 flatcore vulnerability CVSS: 6.5 16 Jun 2022, 10:15 UTC

flatCore-CMS v2.0.8 has a code execution vulnerability, which could let a remote malicious user execute arbitrary PHP code.

CVE-2021-41403 flatcore vulnerability CVSS: 7.5 15 Jun 2022, 22:15 UTC

flatCore-CMS version 2.0.8 calls dangerous functions, causing server-side request forgery vulnerabilities.

CVE-2021-40902 flatcore vulnerability CVSS: 3.5 13 Jun 2022, 13:15 UTC

flatCore-CMS version 2.0.8 is affected by Cross Site Scripting (XSS) in the "Create New Page" option through the index page.

CVE-2021-42245 flatcore vulnerability CVSS: 4.3 06 Jun 2022, 12:15 UTC

FlatCore-CMS 2.0.9 has a cross-site scripting (XSS) vulnerability in pages.edit.php through meta tags and content sections.

CVE-2021-3745 flatcore vulnerability CVSS: 6.0 28 Oct 2021, 17:15 UTC

flatcore-cms is vulnerable to Unrestricted Upload of File with Dangerous Type

CVE-2021-39609 flatcore vulnerability CVSS: 3.5 23 Aug 2021, 21:15 UTC

Cross Site Scripting (XSS) vulnerability exiss in FlatCore-CMS 2.0.7 via the upload image function.

CVE-2021-39608 flatcore vulnerability CVSS: 9.0 23 Aug 2021, 21:15 UTC

Remote Code Execution (RCE) vulnerabilty exists in FlatCore-CMS 2.0.7 via the upload addon plugin, which could let a remote malicious user exeuct arbitrary php code.

CVE-2021-23838 flatcore vulnerability CVSS: 3.5 15 Jan 2021, 07:15 UTC

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.

CVE-2021-23837 flatcore vulnerability CVSS: 4.0 15 Jan 2021, 07:15 UTC

An issue was discovered in flatCore before 2.0.0 build 139. A time-based blind SQL injection was identified in the selected_folder HTTP request body parameter for the acp interface. The affected parameter (which retrieves the file contents of the specified folder) was found to be accepting malicious user input without proper sanitization, thus leading to SQL injection. Database related information can be successfully retrieved.

CVE-2021-23836 flatcore vulnerability CVSS: 3.5 15 Jan 2021, 07:15 UTC

An issue was discovered in flatCore before 2.0.0 build 139. A stored XSS vulnerability was identified in the prefs_smtp_psw HTTP request body parameter for the acp interface. An admin user can inject malicious client-side script into the affected parameter without any form of input sanitization. The injected payload will be executed in the browser of a user whenever one visits the affected module page.

CVE-2021-23835 flatcore vulnerability CVSS: 4.0 15 Jan 2021, 07:15 UTC

An issue was discovered in flatCore before 2.0.0 build 139. A local file disclosure vulnerability was identified in the docs_file HTTP request body parameter for the acp interface. This can be exploited with admin access rights. The affected parameter (which retrieves the contents of the specified file) was found to be accepting malicious user input without proper sanitization, thus leading to retrieval of backend server sensitive files, e.g., /etc/passwd, SQLite database files, PHP source code, etc.

CVE-2020-17452 flatcore vulnerability CVSS: 9.0 09 Aug 2020, 19:15 UTC

flatCore before 1.5.7 allows upload and execution of a .php file by an admin.

CVE-2020-17451 flatcore vulnerability CVSS: 3.5 09 Aug 2020, 19:15 UTC

flatCore before 1.5.7 allows XSS by an admin via the acp/acp.php?tn=pages&sub=edit&editpage=1 page_linkname, page_title, page_content, or page_extracontent parameter, or the acp/acp.php?tn=system&sub=sys_pref prefs_pagename, prefs_pagetitle, or prefs_pagesubtitle parameter.

CVE-2019-13961 flatcore vulnerability CVSS: 6.8 18 Jul 2019, 20:15 UTC

A CSRF vulnerability was found in flatCore before 1.5, leading to the upload of arbitrary .php files via acp/core/files.upload-script.php.

CVE-2019-10652 flatcore vulnerability CVSS: 6.5 30 Mar 2019, 14:29 UTC

An issue was discovered in flatCore 1.4.7. acp/acp.php allows remote authenticated administrators to upload arbitrary .php files, related to the addons feature.

CVE-2017-1000428 flatcore vulnerability CVSS: 4.3 10 Jan 2018, 02:29 UTC

flatCore-CMS 1.4.6 is vulnerable to reflected XSS in user_management.php due to the use of $_SERVER['PHP_SELF'] to build links and a stored XSS in the admin log panel by specifying a malformed User-Agent string.

CVE-2017-9451 flatcore vulnerability CVSS: 4.3 06 Jun 2017, 16:29 UTC

Cross site scripting (XSS) vulnerability in pages.edit_form.php in flatCore 1.4.6 allows remote attackers to inject arbitrary JavaScript via the PATH_INFO in an acp.php URL, due to use of unsanitized $_SERVER['PHP_SELF'] to generate URLs.

CVE-2017-8868 flatcore vulnerability CVSS: 5.0 10 May 2017, 05:29 UTC

acp/core/files.browser.php in flatCore 1.4.7 allows file deletion via directory traversal in the delete parameter to acp/acp.php. The risk might be limited to requests submitted through CSRF.

CVE-2017-7879 flatcore vulnerability CVSS: 5.0 14 Apr 2017, 18:59 UTC

SQL Injection vulnerability in flatCore version 1.4.6 allows an attacker to read the content database.

CVE-2017-7878 flatcore vulnerability CVSS: 7.5 14 Apr 2017, 18:59 UTC

SQL Injection vulnerability in flatCore version 1.4.6 allows an attacker to read and write to the users database.

CVE-2017-7877 flatcore vulnerability CVSS: 6.8 14 Apr 2017, 18:59 UTC

CSRF vulnerability in flatCore version 1.4.6 allows remote attackers to modify CMS configurations.