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CVE-2021-26600

Date: March 27, 2022

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

Language: PHP

Severity Score

9.8

Related Resources (8)

Url: https://hackerone.com/reports/1081986

Url: https://github.com/ImpressCMS/impresscms/releases/tag/v1.4.3

Url: https://nvd.nist.gov/vuln/detail/CVE-2021-26600

Url: http://seclists.org/fulldisclosure/2022/Mar/43

Url: https://github.com/ImpressCMS/impresscms

Url: http://karmainsecurity.com/KIS-2022-01

Url: http://packetstormsecurity.com/files/166393/ImpressCMS-1.4.2-Authentication-Bypass.html

Url: https://www.mend.io/vulnerability-database/CVE-2021-26600

Severity Score

9.8

Weakness Type (CWE)

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

CWE-843

CVSS v3.1

Base Score:	9.8
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	LOW
Privileges Required (PR):	NONE
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	HIGH
Integrity (I):	HIGH
Availability (A):	HIGH

CVSS v2

Base Score:	7.5
Access Vector (AV):	NETWORK
Access Complexity (AC):	LOW
Authentication (AU):	NONE
Confidentiality (C):	PARTIAL
Integrity (I):	PARTIAL
Availability (A):	PARTIAL
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