CVE-2026-73330

CamaleonCMS 2.9.1 Server-Side Template Injection via test_email Action

Published Aug 12, 2026 CVSS 4.0 · 7.5 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
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
Type Values Removed Values Added
First Time appeared Owen2345
Owen2345 camaleon Cms
Vendors & Products Owen2345
Owen2345 camaleon Cms
Type Values Removed Values Added
Metrics ssvc

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

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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Aug 14, 2026, 4:52 PM
Reserved
Aug 11, 2026, 9:47 PM
Status
Deferred
Published
Aug 12, 2026, 8:17 PM
Modified
Oct 24, 2026, 3:10 PM