CamaleonCMS 2.9.1 contains a server-side template injection vulnerability that allows authenticated administrators to execute arbitrary commands by embedding ERB tags in the email parameter of the test_email settings action, which are evaluated when an SMTP rejection reflects the recipient address back in the exception message rendered as an inline ERB template. Attackers can submit a crafted email parameter containing ERB expressions through the admin settings test_email endpoint, causing the Rails inline template renderer to evaluate attacker-controlled Ruby code and achieve arbitrary command execution as the Rails process user.
History

Fri, 14 Aug 2026 17:15:00 +0000

Type Values Removed Values Added
First Time appeared Tuzitio
Tuzitio camaleon Cms
CPEs cpe:2.3:a:tuzitio:camaleon_cms:*:*:*:*:*:*:*:*
Vendors & Products Tuzitio
Tuzitio camaleon Cms

Wed, 12 Aug 2026 21:45:00 +0000

Type Values Removed Values Added
First Time appeared Owen2345
Owen2345 camaleon Cms
Vendors & Products Owen2345
Owen2345 camaleon Cms

Wed, 12 Aug 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 12 Aug 2026 19:30:00 +0000

Type Values Removed Values Added
Description CamaleonCMS 2.9.1 contains a server-side template injection vulnerability that allows authenticated administrators to execute arbitrary commands by embedding ERB tags in the email parameter of the test_email settings action, which are evaluated when an SMTP rejection reflects the recipient address back in the exception message rendered as an inline ERB template. Attackers can submit a crafted email parameter containing ERB expressions through the admin settings test_email endpoint, causing the Rails inline template renderer to evaluate attacker-controlled Ruby code and achieve arbitrary command execution as the Rails process user.
Title CamaleonCMS 2.9.1 Server-Side Template Injection via test_email Action
Weaknesses CWE-1336
References
Metrics cvssV3_1

{'score': 6.6, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 7.5, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-08-12T19:00:36.609Z

Updated: 2026-08-14T16:52:27.408Z

Reserved: 2026-08-11T21:47:14.059Z

Link: CVE-2026-73330

cve-icon Vulnrichment

Updated: 2026-08-12T19:46:39.313Z

cve-icon NVD

Status : Deferred

Published: 2026-08-12T20:17:55.197

Modified: 2026-08-26T16:56:50.830

Link: CVE-2026-73330

cve-icon Redhat

No data.