CVE-2026-73330

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.

CVSS v3 6.6 MEDIUM

6.6^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 0.7 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://enrik-m.github.io/posts/Camaleon-CMS-Vulnerabilties/#44-stored-xss-via-draft-post-title
https://github.com/owen2345/camaleon-cms
https://www.vulncheck.com/advisories/camaleoncms-server-side-template-injection-via-test-email-action

Configurations

No configuration.

History

12 Aug 2026, 20:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-08-12 20:17

Updated : 2026-08-12 20:17

NVD link : CVE-2026-73330

Mitre link : CVE-2026-73330

CVE.ORG link : CVE-2026-73330

JSON object : View

Products Affected

No product.

CWE

CWE-1336

Improper Neutralization of Special Elements Used in a Template Engine

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