CVE-2021-43136
An authentication bypass issue in FormaLMS <= 2.4.4 allows an attacker to bypass the...
CVE-2021-43136 is a critical vulnerability (CVSS 9.8) in Formalms, published November 10, 2021. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 15.7%, the 96th percentile. No source names a fixed version.
- Severity
- 9.8 CriticalCVSS 3.1, NVD
- Exploit chance
- 15.7%EPSS, 96th percentile
- Exploitation
- None known1 public exploit
- Fixed in
- No fix listedNo source names one
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | FormaLMS 2.4.4 - Authentication Bypass | 2021-11-11 |
What each source reports
NVD Score used
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.
- Record
CVE-2021-43136- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:P - Weakness
- CWE-798
- Updated
- 2026-11-02
CVE ListNo score
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.
- Record
CVE-2021-43136- Updated
- 2026-11-02
EUVDEUVD-2021-30085No score
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.
- Record
EUVD-2021-30085- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-r5fr-w3hg-pg7p
An authentication bypass issue in FormaLMS <= 2.4.4 allows an attacker to bypass the...
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.
- Record
GHSA-r5fr-w3hg-pg7p- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-287
- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
References
blog.hacktivesecurity.com
formalms.org
packetstormsecurity.com/files/164930/FormaLMS-2.4.4-Authentication-Bypass.html
nvd.nist.gov/vuln/detail/CVE-2021-43136
github.com/advisories/GHSA-r5fr-w3hg-pg7p