ellite Wallos up to 4.0.0 Email Notification Settings saveemailnotifications.php smtpAddress server-side request forgery

Summaryinfo

A vulnerability was found in ellite Wallos up to 4.0.0. It has been classified as problematic. This affects an unknown function of the file endpoints/notifications/saveemailnotifications.php of the component Email Notification Settings. The manipulation of the argument smtpAddress leads to server-side request forgery. This vulnerability is listed as CVE-2026-77352. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in ellite Wallos up to 4.0.0. It has been rated as problematic. This issue affects an unknown code block of the file endpoints/notifications/saveemailnotifications.php of the component Email Notification Settings. The manipulation of the argument smtpAddress with an unknown input leads to a server-side request forgery vulnerability. Using CWE to declare the problem leads to CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. Impacted is confidentiality. The summary by CVE is:

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.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-77352 since 08/20/2026. The exploitation is known to be easy. The attack may be initiated remotely. Technical details are known, but no exploit is available.

By approaching the search of inurl:endpoints/notifications/saveemailnotifications.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 5.0.0 eliminates this vulnerability.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

• ellite

Name

• Wallos

Version

• 4.0

Website

• Product: https://github.com/ellite/Wallos/

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