{"id":"BIT-appsmith-2026-49979","summary":"Appsmith: SSRF via `POST /api/v1/admin/send-test-email` — JavaMail Bypasses WebClient IP Filter","details":"Appsmith is a platform to build admin panels, internal tools, and dashboards. Prior to 1.99, the POST /api/v1/admin/send-test-email endpoint accepts attacker-controlled smtpHost and smtpPort values and establishes a raw JavaMail TCP connection without any IP validation. This completely bypasses WebClientUtils.IP_CHECK_FILTER, which only applies to Spring WebClient HTTP requests. Additionally, the raw MailException.getMessage() is returned verbatim in the API error response, enabling error-based internal port scanning and service banner enumeration. This vulnerability is fixed in 1.99.","aliases":["BIT-appsmith-2026-7299","CVE-2026-49979","CVE-2026-7299","GHSA-vvxf-f8q9-86gh"],"modified":"2026-09-08T08:45:48.528403579Z","published":"2026-06-30T23:35:48.224Z","database_specific":{"cpes":["cpe:2.3:a:appsmith:appsmith:*:*:*:*:*:*:*:*"],"severity":"Medium"},"references":[{"type":"ADVISORY","url":"https://github.com/appsmithorg/appsmith/security/advisories/GHSA-vvxf-f8q9-86gh"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-49979"}],"affected":[{"package":{"name":"appsmith","ecosystem":"Bitnami","purl":"pkg:bitnami/appsmith"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.99.0"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/appsmith/BIT-appsmith-2026-49979.json"},"severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"}]}],"schema_version":"1.9.0"}