CVE-2026-61639: Ellite Wallos

High severity, CVSS 8.5. EPSS: 0.5% chance of exploitation in the next 30 days.

Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.9.6, POST /endpoints/db/restore.php calls ZipArchive::extractTo() without validating entry names for ../ sequences. Admin uploads crafted zip with entry logos/../../endpoints/shell.php to write webshell to webroot. Extension filter only applies to post-extraction logo copy step. This issue has been patched in version 4.9.6.

Affected products

• Ellite Wallos: before 4.9.6 (fixed in 4.9.6)

Published 2026-08-31. Last modified 2026-09-08.