CVE-2026-77351 (GCVE-0-2026-77351)

Vulnerability from cvelistv5 – Published: 2026-08-31 21:15 – Updated: 2026-09-01 13:29
VLAI
Title
Wallos: SSRF via Unvalidated User-Level SMTP Host in Email Notification Settings
Summary
Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 5.0.0, Wallos lets any authenticated user store an arbitrary SMTP host — including private and cloud-metadata IP addresses — in their personal email notification settings, with no server-side SSRF validation. When the scheduled notification cron job runs, it passes the stored host directly to PHPMailer, causing the Wallos server to open an outbound TCP connection to whatever address the attacker specified. This gives a low-privileged attacker a reliable mechanism to probe internal network services from the server's perspective. This issue has been patched in version 5.0.0.
Severity
3.5 (Low)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-01 13:23 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7699 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
ellite Wallos Affected: < 5.0.0
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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