{"id":"CVE-2026-77352","title":"Wallos is an open-source, self-hostable personal subscription tracker","summary":"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 i…","severity":"medium","cvss":4.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","cwe":["CWE-918"],"published":"2026-08-31","updated":"2026-09-08","sourceUpdated":"2026-09-08T21:11:31.703","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-77352","references":[{"url":"https://github.com/ellite/Wallos/commit/11eaf402e841a628c68a805694227ce66c45f6f3","label":"security-advisories@github.com"},{"url":"https://github.com/ellite/Wallos/releases/tag/v5.0.0","label":"security-advisories@github.com"},{"url":"https://github.com/ellite/Wallos/security/advisories/GHSA-c75x-9vj6-57qj","label":"security-advisories@github.com"}],"tags":["nvd"],"epss":0.00193,"epssPercentile":0.09221,"ingestedAt":"2026-09-08T22:12:30.945Z","slug":"CVE-2026-77352","body":"## Overview\n\nWallos 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->Host = $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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":23.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}