CVE-2026-66748

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-66748
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-66748.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-66748
Published
2026-07-28T15:19:52Z
Modified
2026-08-15T04:07:12Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
Camaleon CMS 2.1.1 - 2.9.1 Authenticated RCE via select_eval Custom Field
Details

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.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-94"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/66xxx/CVE-2026-66748.json"
}
References

Affected packages

Git / github.com/owen2345/camaleon-cms

Affected ranges

Type
GIT
Repo
https://github.com/owen2345/camaleon-cms
Events
Introduced
a9e64edaba0837bac051a432a06be1b401820cb6
Fixed
cc71e01c909c9e7fa23ddc115981773ce1242b49
Fixed
158823668e2e5c3114a69b34cf1c96cb41533c5f
Fixed
45c15c72bf415015322512bc1f8069bdff240dd4
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "2.1.1"
        },
        {
            "fixed": "2.9.1"
        }
    ],
    "source": [
        "DESCRIPTION",
        "REFERENCES"
    ]
}

Affected versions

2.*
2.1.1
2.1.2
2.1.2.0
2.2.0
2.3.1
2.3.2
2.3.3
2.3.4
2.3.5
2.3.6
2.3.7
2.4.0
2.4.1
2.4.2
2.4.3
2.4.3.10
2.4.3.11
2.4.3.12
2.4.3.7
2.4.4
2.4.4.2
2.4.4.3
2.4.4.5
2.4.4.6
2.4.5
2.4.5.1
2.4.5.10
2.4.5.11
2.4.5.12
2.4.5.13
2.4.5.14
2.4.5.7
2.4.6.0
2.4.6.1
2.4.6.7
2.5.1
2.5.3
2.5.3.1
2.6.0
2.6.0.1
2.6.1
2.6.2
2.6.4
2.7.0
2.7.1
2.7.3
2.7.4
2.7.5
2.8.0
2.8.1
2.8.2
2.8.3
2.9.0
2.9.1
2.9.2
camaleon_cms-2.*
camaleon_cms-2.4.5.11.gem
v2.*
v2.1.1.3

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-66748.json"