CVE-2021-22970

HIGH

Concrete CMS < 8.5.6 and 9.0.0 - Server-Side Request Forgery via Local IP Import

Title source: llm
STIX 2.1

Description

Concrete CMS (formerly concrete5) versions 8.5.6 and below and version 9.0.0 allow local IP importing causing the system to be vulnerable toa. SSRF attacks on the private LAN servers by reading files from the local LAN. An attacker can pivot in the private LAN and exploit local network appsandb. SSRF Mitigation Bypass through DNS RebindingConcrete CMS security team gave this a CVSS score of 3.5 AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:NConcrete CMS is maintaining Concrete version 8.5.x until 1 May 2022 for security fixes.This CVE is shared with HackerOne Reports https://hackerone.com/reports/1364797 and https://hackerone.com/reports/1360016Reporters: Adrian Tiron from FORTBRIDGE (https://www.fortbridge.co.uk/ ) and Bipul Jaiswal

References (3)

Core 3
Core References
Permissions Required x_refsource_misc
https://hackerone.com/reports/1364797

Scores

CVSS v3 7.5
EPSS 0.0144
EPSS Percentile 69.8%
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-918
Status published
Products (3)
concrete5/core 0 - 8.5.7Packagist
concretecms/concrete_cms 9.0
concretecms/concrete_cms < 8.5.6
Published Nov 19, 2021
Tracked Since Feb 18, 2026