CVE-2022-43686 Concrete CMS vulnerable to Uncontrolled Resource Consumption leading to DoS

What is CVE-2022-43686?

CVE-2022-43686 is a medium-severity denial of service vulnerability in Concretecms Concrete Cms, published on 14 Nov 2022. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

In Concrete CMS (formerly concrete5) below 8.5.10 and between 9.0.0 and 9.1.2, the authTypeConcreteCookieMap table can be filled up causing a denial of service (high load).

Weakness: CWE-770

Which versions are affected by CVE-2022-43686?

4 open source packages ship an affected version, including concrete5/concrete5. It affects 1 product.

Products include Concretecms Concrete Cms.

How do I fix CVE-2022-43686?

Upgrade concrete5/concrete5 to a fixed version for your release line: 8.5.10 or 9.1.3.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2022-43686 being exploited?

There is no known exploitation of CVE-2022-43686 in the wild and no public exploit code.

Other vulnerabilities in Concretecms Concrete Cms

• CVE-2023-48648 Concrete CMS allows unauthorized access because directories can be created with insecure permissions Critical 9.8
• CVE-2022-21829 Code injection in concrete CMS Critical 9.8
• CVE-2021-22958 Server-Side Request Forgery vulnerability in concrete5 Critical 9.8
• CVE-2021-40098 Path traversal in n/a Critical 9.8
• CVE-2026-8134 Concrete CMS Vulnerable to Relative Path Traversal Critical 9.4

All Concretecms Concrete Cms vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-3cxx-3f53-m92c.