Vulnerability CVE-2021-26600
Published: 2022-03-28

Description:
ImpressCMS before 1.4.3 has plugins/preloads/autologin.php type confusion with resultant Authentication Bypass (!= instead of !==).

See advisories in our WLB2 database:
Topic
Author
Date
Med.
ImpressCMS 1.4.2 Authentication Bypass
EgiX
22.03.2022

Type:

CWE-843

 (Access of Resource Using Incompatible Type ('Type Confusion'))

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.5/10
6.4/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Impresscms -> Impresscms 

 References:
http://seclists.org/fulldisclosure/2022/Mar/43
http://packetstormsecurity.com/files/166393/ImpressCMS-1.4.2-Authentication-Bypass.html
http://karmainsecurity.com/KIS-2022-01
https://hackerone.com/reports/1081986
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