CVE-2021-43136

CRITICAL

FormaLMS <= 2.4.4 - Authentication Bypass via Hard-coded Credentials

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2021-43136. PoCs published by Cristian \'void\' Giustini.

AI-analyzed exploit summary This exploit generates two URLs with empty and fixed values of the 'secret' to bypass authentication in FormaLMS <= 2.4.4 by leveraging a default or empty token value. It requires the 'Enable SSO with a third party software through a token' setting to be enabled.

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.

Exploits (1)

exploitdb WORKING POC
by Cristian \'void\' Giustini · pythonwebappsmultiple
https://www.exploit-db.com/exploits/50513

This exploit generates two URLs with empty and fixed values of the 'secret' to bypass authentication in FormaLMS <= 2.4.4 by leveraging a default or empty token value. It requires the 'Enable SSO with a third party software through a token' setting to be enabled.

Classification
Working Poc 100%
Attack Type
Auth Bypass
Complexity
Trivial
Reliability
Reliable
Target: FormaLMS <= 2.4.4
No auth needed
Prerequisites: Enable SSO with a third party software through a token setting must be enabled
devstral-2 · analyzed Feb 18, 2026 Full analysis →

References (4)

Core 4
Core References
Third Party Advisory x_refsource_misc
https://blog.hacktivesecurity.com
Vendor Advisory x_refsource_misc
https://formalms.org
Exploit, Third Party Advisory, VDB Entry x_refsource_misc
http://packetstormsecurity.com/files/164930/FormaLMS-2.4.4-Authentication-Bypass.html

Scores

CVSS v3 9.8
EPSS 0.1573
EPSS Percentile 96.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-798
Status published
Products (1)
formalms/formalms < 2.4.4
Published Nov 10, 2021
Tracked Since Feb 18, 2026