CVE-2021-43136

CRITICAL
Published Nov 10, 20214y ago · Modified Jun 17, 20261w ago
9.8 CVSS 3.1
Critical
Find Similar
Published Nov 10, 2021 4y ago
Last Modified Jun 17, 2026 1w ago

Description

An authentication bypass issue in FormaLMS <= 2.4.4 allows an attacker to bypass the authentication mechanism and obtain a valid access to the platform.

CVSS Details

Base Score
9.8
Exploitability
3.9
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

No active exploitation signals — not in CISA KEV and no EPSS score yet.

Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-798 Use of Hard-coded Credentials Authentication

Affected Products 1

VendorProductVersionRange
formalmsformalms* ≤2.4.4

References 4

  • packetstormsecurity.com http://packetstormsecurity.com/files/164930/FormaLMS-2.4.4-Authentication-Bypass.html
    ExploitThird Party AdvisoryVDB Entry
  • blog.hacktivesecurity.com https://blog.hacktivesecurity.com
    Third Party Advisory
  • blog.hacktivesecurity.com https://blog.hacktivesecurity.com/index.php/2021/10/05/cve-2021-43136-formalms-the-evil-default-value-that-leads-to-authentication-bypass/
    ExploitThird Party Advisory
  • formalms.org https://formalms.org
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.