Answer in brief
CVE-2026-66748 records a High severity (CVSS 8.7) vulnerability in Camaleon CMS 2.1.1 - 2.9.1 Authenticated RCE via select_eval Custom Field. The current sources do not mark it as known exploited. The current feed maps owen2345/camaleon-cms (generic), owen2345/camaleon-cms (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.7. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps owen2345/camaleon-cms (generic), owen2345/camaleon-cms (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| owen2345/camaleon-cmsgeneric | 2.1.1 || 2.9.2 | Not reported |
| owen2345/camaleon-cmsgeneric | * | Not reported |
Published upstream
Jul 28, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 8, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 14, 2026
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.
Quoted source text, attributed separately from HOL analysis.