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TI-2022-21040 Aliases CVE-2022-43118GHSA-2f8m-rcx6-7jfh

A cross-site scripting (XSS) vulnerability in flatCore-CMS v2.1.0 allows attackers to…

Priority MEDIUM 60CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-79.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00494 42nd 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

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

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-cms:2.1.0:*:*:*:*:*:*:*2.1.0Vulnerableflatcore
  • cpe:2.3:a:flatcore:flatcore-cms:2.1.0:*:*:*:*:*:*:* Versions 2.1.0 Vulnerable ·flatcore

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-43118
  2. 2026-10-03 Alias added: GHSA-2f8m-rcx6-7jfh

References

Exploit 1

  • TI-2021-16852 Remote Code Execution (RCE) vulnerabilty exists in FlatCore-CMS 2.0.7 via the upload… CVSS 3.1HIGH 7.2
  • TI-2021-18214 flatCore-CMS version 2.0.8 calls dangerous functions, causing server-side request forgery vulnerabilities. CVSS 3.1CRITICAL 9.8
  • TI-2017-05491 SQL Injection vulnerability in flatCore version 1.4.6 allows an attacker to read and write to the users database. CVSS 3.0CRITICAL 9.8
  • TI-2021-18213 flatCore-CMS v2.0.8 has a code execution vulnerability, which could let a remote… CVSS 3.1HIGH 8.8
  • TI-2017-05490 CSRF vulnerability in flatCore version 1.4.6 allows remote attackers to modify CMS configurations. CVSS 3.0HIGH 8.8
  • TI-2017-06376 acp/core/files.browser.php in flatCore 1.4.7 allows file deletion via directory traversal… CVSS 3.0HIGH 7.5
See all 12 →

Sources

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