Description
In Concrete CMS (formerly concrete 5) below 8.5.7, IDOR Allows Unauthenticated User to Access Restricted Files If Allowed to Add Message to a Conversation.To remediate this, a check was added to verify a user has permissions to view files before attaching the files to a message in "add / edit message”.Concrete CMS security team gave this a CVSS v3.1 score of 4.3 AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:NCredit for discovery Adrian H
References (2)
Core 2
Core References
Release Notes, Vendor Advisory x_refsource_misc
https://documentation.concretecms.org/developers/introduction/version-history/857-release-notes
Permissions Required x_refsource_misc
https://hackerone.com/reports/869612
Scores
CVSS v3
7.5
EPSS
0.0075
EPSS Percentile
73.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Details
CWE
CWE-639
Status
published
Products (2)
concrete5/core
0 - 8.5.7Packagist
concretecms/concrete_cms
< 8.5.7
Published
Nov 19, 2021
Tracked Since
Feb 18, 2026