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GHSA-6mxw-2vhf-42g5

LowCVSS 2.3 / 10
Published Mar 4, 2026·Last modified Mar 4, 2026
Affected Components(0)

No affected components available

Description

Concrete CMS below version 9.4.8 is subject to CSRF by a Rogue Administrator using the Anti-Spam Allowlist Group Configuration via group_id parameter which can leads to a security bypass since changes are saved prior to checking the CSRF token. 

The Concrete CMS security team thanks z3rco for reporting

Risk Scores
Base Score
2.3

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights.

Threat Intelligence
0.6

Limited exploitation activity has been observed. Close monitoring and planned remediation are recommended.

EPSS
0.21%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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