{"id":"CVE-2026-77352","state":"PUBLISHED","title":"Wallos: Authenticated SSRF via per-user SMTP notification host (low-privilege user)","description":"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->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.","publishedAt":"2026-08-31T21:21:06.895Z","updatedAt":"2026-09-01T14:57:40.014Z","severity":{"score":4.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["ellite Wallos"],"affected":[{"vendor":"ellite","product":"Wallos","versions":[{"version":">= 2.0.0, < 5.0.0","status":"affected"}]}],"references":["https://github.com/ellite/Wallos/security/advisories/GHSA-c75x-9vj6-57qj","https://github.com/ellite/Wallos/commit/11eaf402e841a628c68a805694227ce66c45f6f3","https://github.com/ellite/Wallos/releases/tag/v5.0.0"],"weaknesses":["CWE-918"],"ingestedAt":"2026-10-29T20:13:07.220Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/77xxx/CVE-2026-77352.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-77352","state":"PUBLISHED","datePublished":"2026-08-31T21:21:06.895Z","dateUpdated":"2026-09-01T14:57:40.014Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-08-20T19:28:35.244Z"},"containers":{"cna":{"title":"Wallos: Authenticated SSRF via per-user SMTP notification host (low-privilege user)","descriptions":[{"lang":"en","value":"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->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."}],"affected":[{"vendor":"ellite","product":"Wallos","versions":[{"version":">= 2.0.0, < 5.0.0","status":"affected"}]}],"references":[{"url":"https://github.com/ellite/Wallos/security/advisories/GHSA-c75x-9vj6-57qj","name":"https://github.com/ellite/Wallos/security/advisories/GHSA-c75x-9vj6-57qj","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/ellite/Wallos/commit/11eaf402e841a628c68a805694227ce66c45f6f3","name":"https://github.com/ellite/Wallos/commit/11eaf402e841a628c68a805694227ce66c45f6f3","tags":["x_refsource_MISC"]},{"url":"https://github.com/ellite/Wallos/releases/tag/v5.0.0","name":"https://github.com/ellite/Wallos/releases/tag/v5.0.0","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-918","lang":"en","description":"CWE-918: Server-Side Request Forgery (SSRF)","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-08-31T21:21:06.895Z"},"source":{"advisory":"GHSA-c75x-9vj6-57qj","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-01T14:15:10.690747Z","id":"CVE-2026-77352","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-01T14:57:40.014Z"}}]}}}