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TI-2021-06199 Aliases CVE-2021-23835GHSA-32wp-rjr7-9fg7

An issue was discovered in flatCore before 2.0.0 build 139.

Priority LOW 26CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · None · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

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.

Why it matters now

EPSS 0.017 77th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:flatcore:flatcore:*:*:*:*:*:*:*:*up to 2.0.0Vulnerableflatcore
  • cpe:2.3:a:flatcore:flatcore:*:*:*:*:*:*:*:* Versions up to 2.0.0 Vulnerable ·flatcore

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-23835
  2. 2026-10-03 Alias added: GHSA-32wp-rjr7-9fg7

References

Exploit 1

Advisory 2

  • TI-2021-17581 Cross site scripting (XSS) vulnerability in flatCore-CMS 2.2.15 allows attackers to… CVSS 3.1MEDIUM 5.4
  • TI-2019-10413 A CSRF vulnerability was found in flatCore before 1.5, leading to the upload of arbitrary… CVSS 3.0HIGH 8.8
  • TI-2019-07947 An issue was discovered in flatCore 1.4.7. CVSS 3.0HIGH 7.2
  • TI-2020-13217 flatCore before 1.5.7 allows upload and execution of a .php file by an admin. CVSS 3.1HIGH 7.2
  • TI-2021-06201 An issue was discovered in flatCore before 2.0.0 build 139. CVSS 3.1MEDIUM 6.5
  • TI-2017-06862 Cross site scripting (XSS) vulnerability in pages.edit_form.php in flatCore 1.4.6 allows… CVSS 3.0MEDIUM 6.1
See all 9 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences