{"id":"CVE-2026-73330","summary":"CamaleonCMS 2.9.1 Server-Side Template Injection via test_email Action","details":"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.","modified":"2026-08-28T11:30:38.587398368Z","published":"2026-08-12T19:00:36.609Z","database_specific":{"cna_assigner":"VulnCheck","cwe_ids":["CWE-1336"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73330.json"},"references":[{"type":"WEB","url":"https://enrik-m.github.io/posts/Camaleon-CMS-Vulnerabilties/#44-stored-xss-via-draft-post-title"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73330.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-73330"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/camaleoncms-server-side-template-injection-via-test-email-action"},{"type":"FIX","url":"https://github.com/owen2345/camaleon-cms"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/owen2345/camaleon-cms","events":[{"introduced":"0"},{"last_affected":"cc71e01c909c9e7fa23ddc115981773ce1242b49"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"last_affected":"2.9.1"}],"source":"AFFECTED_FIELD"}}],"versions":["2.9.1","2.9.0","2.8.3","2.8.2","2.8.1","2.8.0","2.7.5","2.7.4","2.7.3","2.7.1","2.7.0","2.6.4","2.6.2","2.6.1","2.6.0.1","2.6.0","2.5.3.1","2.5.3","2.5.1","2.4.6.7","2.4.6.1","2.4.6.0","2.4.5.14","2.4.5.13","2.4.5.12","camaleon_cms-2.4.5.11.gem","2.4.5.11","2.4.5.10","2.4.5.7","2.4.5.1","2.4.5","2.4.4.6","2.4.4.5","2.4.4.3","2.4.4.2","2.4.4","2.4.3.12","2.4.3.11","2.4.3.10","2.4.3.7","2.4.3","2.4.2","2.4.1","2.4.0","2.3.7","2.3.6","2.3.5","2.3.4","2.3.3","2.3.2","2.3.1","2.2.0","2.1.2.0","v2.1.1.3","2.1.2","2.1.1","v2.0.0","0.2.0","0.1.7"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-73330.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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"}]}