{"id":"CVE-2026-77352","summary":"Wallos: Authenticated SSRF via per-user SMTP notification host (low-privilege user)","details":"Wallos is an open-source, self-hostable personal subscription tracker. From version 2.0.0 to before version 5.0.0, any authenticated Wallos user (no admin rights required) can make the server open arbitrary outbound SMTP connections to internal/link-local addresses, by setting the SMTP host of their personal email notifications to an internal IP. The per-user notification settings endpoint (endpoints/notifications/saveemailnotifications.php) performs no SSRF validation, and the notification cron (endpoints/cronjobs/sendnotifications.php) feeds that user-controlled host straight into PHPMailer ($mail-\u003eHost = $email['smtpAddress']). When the user's subscription notification fires, the server connects to the chosen host:port. This issue has been patched in version 5.0.0.","aliases":["GHSA-c75x-9vj6-57qj"],"modified":"2026-09-03T03:30:36.768524969Z","published":"2026-08-31T21:21:06.895Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-918"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77352.json"},"references":[{"type":"WEB","url":"https://github.com/ellite/Wallos/releases/tag/v5.0.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77352.json"},{"type":"ADVISORY","url":"https://github.com/ellite/Wallos/security/advisories/GHSA-c75x-9vj6-57qj"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-77352"},{"type":"FIX","url":"https://github.com/ellite/Wallos/commit/11eaf402e841a628c68a805694227ce66c45f6f3"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/ellite/wallos","events":[{"introduced":"b9e46ba2789aa6b4fcd0084e1806a8fc45cd12fe"},{"fixed":"7a9e4a6ba9155a9e83a91781d9b3d66d69a96f8c"}],"database_specific":{"extracted_events":[{"introduced":"2.0.0"},{"fixed":"5.0.0"}],"source":"AFFECTED_FIELD"}}],"versions":["v4.9.6","v4.9.5","v4.9.4","v4.9.3","v4.9.2","v4.9.1","v4.9.0","v4.8.4","v4.8.3","v4.8.2","v4.8.1","v4.8.0","v4.7.3","v4.7.2","v4.7.1","v4.7.0","v4.6.2","v4.6.1","v4.6.0","v4.5.0","v4.4.1","v4.4.0","v4.3.0","v4.2.0","v4.1.1","v4.1.0","v4.0.0","v3.3.1","v3.3.0","v3.2.0","v3.1.1","v3.1.0","v3.0.2","v3.0.1","v3.0.0","v2.52.2","v2.52.1","v2.52.0","v2.51.1","v2.51.0","v2.50.1","v2.50.0","v2.49.1","v2.49.0","v2.48.1","v2.48.0","v2.47.1","v2.47.0","v2.46.1","v2.46.0","v2.45.2","v2.45.1","v2.45.0","v2.44.1","v2.44.0","v2.43.1","v2.43.0","v2.42.2","v2.42.1","v2.42.0","v2.41.0","v2.40.0","v2.39.1","v2.39.0","v2.38.3","v2.38.2","v2.38.1","v2.38.0","v2.37.1","v2.37.0","v2.36.2","v2.36.1","v2.36.0","v2.35.0","v2.34.0","v2.33.1","v2.33.0","v2.32.0","v2.31.1","v2.31.0","v2.30.1","v2.30.0","v2.29.2","v2.29.1","v2.29.0","v2.28.0","v2.27.3","v2.27.2","v2.27.1","v2.27.0","v2.26.0","v2.25.0","v2.24.1","v2.24.0","v2.23.2","v2.23.1","v2.23.0","v2.22.1","v2.22.0","v2.21.3","v2.21.2","v2.21.1","v2.21.0","v2.20.1","v2.20.0","v2.19.3","v2.19.2","v2.19.1","v2.19.0","v2.18.0","v2.17.0","v2.16.1","v2.16.0","v2.15.0","v2.14.2","v2.14.1","v2.14.0","v2.13.0","v2.12.0","v2.11.2","v2.11.1","v2.11.0","v2.10.0","v2.9.0","v2.8.0","v2.7.0","v2.6.1","v2.6.0","v2.5.2","v2.5.1","v2.5.0","v2.4.2","v2.4.1","v2.4.0","v2.3.0","v2.2.0","v2.1.0","v2.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-77352.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"}]}