{"id":"CVE-2026-115479","revision":"63a69c462a814c3194335b444d71508a","records":[{"revision":"63a69c462a814c3194335b444d71508a","observedAt":"2026-10-23T16:01:20.601+00:00","statement":{"source":"cve-program","id":"CVE-2026-115479","aliases":[],"title":"baserCMS: Mail-form auto-replies accept multiple visitor-controlled recipients","description":"baserCMS is a website development framework. In versions 5.2.5 before 5.3.2 and 5.4.0 before 5.4.2, an unauthenticated visitor can supply a comma-separated address list in a public mail form's email field and cause a single auto-reply to be addressed to multiple third parties. MailMessageMailer::sendFormToUser() passes the visitor-controlled userMail value to parseAndNormalizeMailAddresses(), which splits it with explode(',') and supplies every resulting address to setTo(). Newly created forms with an email-type field are affected when the separate, optional VALID_EMAIL server-side validation is not enabled; browser type=email validation does not prevent crafted requests. The bundled contact form enables VALID_EMAIL and is not affected. The auto-reply uses the site's sender identity and includes partially attacker-controlled content, allowing abuse of the site to deliver unsolicited mail. This issue has been patched in versions 5.3.2 and 5.4.2.","state":0,"publishedAt":"2026-10-23T13:36:01.655+00:00","modifiedAt":"2026-10-23T13:36:01.655+00:00","affected":[{"ecosystem":"Vendor product","name":"basercms","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"baserproject\",\n                    \"product\": \"basercms\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 5.2.5, < 5.3.2\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \">= 5.4.0, < 5.4.2\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","score":5.3,"severity":"MEDIUM"}],"references":["https://github.com/baserproject/basercms/security/advisories/GHSA-w47c-4g8m-gjv9","https://github.com/baserproject/basercms/commit/99e6257c9d5e2fa2bff2351defcb9fb37f69daf1","https://github.com/baserproject/basercms/releases/tag/5.3.2","https://github.com/baserproject/basercms/releases/tag/5.4.2"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-115479","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-115479","identifiers":["CVE-2026-115479"]},"retained":false,"historicalAffected":[]}],"coverage":[]}