EUVD-2026-68889Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Low-privilege authenticated account required; SSRF yields only TCP reachability information (C:L); no integrity or availability impact on Wallos itself.
Primary rating from Vendor (GitHub_M).
CVSS VectorVendor: GitHub_M
Lifecycle Timeline
3DescriptionCVE.org
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.
AnalysisAI
Server-side request forgery in Wallos (versions 2.0.0 through 4.x) lets any authenticated user force the application server to open arbitrary outbound TCP connections to attacker-chosen hosts, including internal and link-local addresses. The per-user SMTP notification settings endpoint stores a user-supplied host without validation, and the notification cron job passes it directly to PHPMailer - no admin rights are required to abuse this path. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a valid authenticated Wallos user account; administrative privileges are not needed and no special role or permission beyond basic login is required. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.3 Medium score reflects a network-reachable, low-complexity path that requires only a standard user account. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade Wallos to version 5.0.0, which is the vendor-released patch per the GitHub release tag and security advisory GHSA-c75x-9vj6-57qj. … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
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