Concrete CMS is vulnerable to Cross Site Request Forgery (CSRF) at concrete/controllers/backend/file star()

Description

Concrete CMS 9 through 9.5.0 is vulnerable to Cross Site Request Forgery (CSRF) at concrete/controllers/backend/file star().

Basic information

Type
reviewed
Severity
low
Advisory on GitHub
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Repository advisory
Source code
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Published (advisory)
2026-05-22 00:31:17 UTC
Updated
2026-06-24 21:36:31 UTC
GitHub reviewed
2026-06-24 21:36:31 UTC
NVD published
2026-05-21

EPSS Score

Score Percentile
0.13% 2.92%

CVSS Scores

Base score Version Severity Vector
2.3 4.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network.
Attack complexity (AC:L)
Exploitation conditions are straightforward and stable.
Attack requirements (AT:P)
Additional preconditions must be present for exploitation.
Privileges required (PR:N)
No privileges are required.
User interaction (UI:P)
A user has to participate (for example click/open/approve).
Vulnerable system confidentiality impact (VC:N)
No confidentiality impact on the vulnerable system.
Vulnerable system integrity impact (VI:L)
Limited integrity impact on the vulnerable system.
Vulnerable system availability impact (VA:N)
No availability impact on the vulnerable system.
Subsequent system confidentiality impact (SC:N)
No confidentiality impact on subsequent systems.
Subsequent system integrity impact (SI:N)
No integrity impact on subsequent systems.
Subsequent system availability impact (SA:N)
No availability impact on subsequent systems.

Identifiers

CWEs

CWE id Name
CWE-352 Cross-Site Request Forgery (CSRF)

Affected packages (1)

Vulnerable version ranges and first patched releases as published by GitHub.

Ecosystem Package Vulnerable range First patched Vulnerable functions
composer concrete5/concrete5 >= 9.0.0RC1, < 9.5.1 9.5.1

References

cvelogic Threat Intelligence