CVE-2022-23655 Missing server signature validation in OctoberCMS

What is CVE-2022-23655?

CVE-2022-23655 is a medium-severity missing authorization vulnerability in Octobercms October, published on 23 Feb 2022. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

Octobercms is a self-hosted CMS platform based on the Laravel PHP Framework. Affected versions of OctoberCMS did not validate gateway server signatures. As a result non-authoritative gateway servers may be used to exfiltrate user private keys. Users are advised to upgrade their installations to build 474 or v1.1.10. The only known workaround is to manually apply the patch (e3b455ad587282f0fbcb7763c6d9c3d000ca1e6a) which adds server signature validation.

Weakness: CWE-347

Which versions are affected by CVE-2022-23655?

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

Products include Octobercms October.

How do I fix CVE-2022-23655?

Upgrade october/system to a fixed version for your release line: 1.0.475 or 1.1.11.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2022-23655 being exploited?

There is no known exploitation of CVE-2022-23655 in the wild and no public exploit code.

Other vulnerabilities in Octobercms October

• CVE-2021-32648 October CMS Improper Authentication Exploited High 8.2
• CVE-2021-3311 October CMS Session ID not invalidated after logout Critical 9.8
• CVE-2017-1000194 October CMS File Upload Vulnerability Critical 9.8
• CVE-2017-1000196 Code injection in n/a Critical 9.8
• CVE-2017-1000197 Path traversal in n/a Critical 9.8

All Octobercms October vulnerabilities

Sources

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

Also known as GHSA-53m6-44rc-h2q5.