CRITICAL · 9.8

CVE-2021-26600

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

Vulnerability Description

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

CVSS Score

9.8

CRITICAL

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

Affected Products

VendorProductVersions
ImpresscmsImpresscms< 1.4.3

Related Weaknesses (CWE)

References

FAQ

What is CVE-2021-26600?

CVE-2021-26600 is a vulnerability with a CVSS score of 9.8 (CRITICAL). ImpressCMS before 1.4.3 has plugins/preloads/autologin.php type confusion with resultant Authentication Bypass (!= instead of !==).

How severe is CVE-2021-26600?

CVE-2021-26600 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2021-26600?

Check the references section above for vendor advisories and patch information. Affected products include: Impresscms Impresscms.