Description
Concrete CMS (formerly concrete5) below 8.5.10 and between 9.0.0 and 9.1.2 did not use strict comparison for the legacy_salt so that limited authentication bypass could occur if using this functionality. Remediate by updating to Concrete CMS 9.1.3+ or 8.5.10+.
References (5)
Core 5
Core References
Release Notes, Vendor Advisory
https://documentation.concretecms.org/developers/introduction/version-history/8510-release-notes
Release Notes, Vendor Advisory
https://documentation.concretecms.org/developers/introduction/version-history/913-release-notes
Release Notes, Vendor Advisory
https://github.com/concretecms/concretecms/releases/8.5.10
Release Notes, Vendor Advisory
https://github.com/concretecms/concretecms/releases/9.1.3
Scores
CVSS v3
6.3
EPSS
0.0059
EPSS Percentile
43.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-287
Status
published
Products (2)
concrete5/concrete5
0 - 8.5.10Packagist
concretecms/concrete_cms
< 8.5.10
Published
Nov 14, 2022
Tracked Since
Feb 18, 2026