CVE-2026-30839: Wallosapp Wallos

Medium severity, CVSS 4.3. EPSS: 0.4% chance of exploitation in the next 30 days.

Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.6.2, testwebhooknotifications.php does not validate the target URL against private/reserved IP ranges, enabling full-read SSRF. The server response is returned to the caller. This issue has been patched in version 4.6.2.

Affected products

• Wallosapp Wallos: before 4.6.2 (fixed in 4.6.2)

Published 2026-03-07. Last modified 2026-06-17.