CVE-2026-77352

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.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/ellite/Wallos/commit/11eaf402e841a628c68a805694227ce66c45f6f3
https://github.com/ellite/Wallos/releases/tag/v5.0.0
https://github.com/ellite/Wallos/security/advisories/GHSA-c75x-9vj6-57qj

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-31 22:17

Updated : 2026-09-08 21:11

NVD link : CVE-2026-77352

Mitre link : CVE-2026-77352

CVE.ORG link : CVE-2026-77352

JSON object : View

Products Affected

No product.

CWE

CWE-918

Server-Side Request Forgery (SSRF)

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