CVE-2026-66748: Camaleon CMS 2.1.1 - 2.9.1 Authenticated RCE via select_eval Custom Field
owen2345 · camaleon-cms
Vendor fix available · Affected: owen2345 camaleon-cms · Exploitation: possible (1 to 10%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 67% of scored CVEs
DescriptionCVE.org
Camaleon CMS versions 2.1.1 through 2.9.1 contains an authenticated remote code execution vulnerability that allows users with custom_fields manage permission to execute arbitrary Ruby code by supplying a malicious expression through the select_eval custom field type. Attackers can store an attacker-controlled Ruby expression in the field options command parameter, which is evaluated via instance_eval within an ERB view whenever a post edit page is rendered, achieving server-side code execution with web server process privileges.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- owen2345 · camaleon-cmsfrom 2.1.1 up to and including 2.9.1; 2.9.2
On the Atlas
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CoverageNo articles yet
No CyberSIXT article names CVE-2026-66748 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.