Vulnerability · Published Aug 31, 2026 · Assigned by GitHub_M

CVE-2026-61639Wallos: Zip Slip path traversal in database restore writes files to webroot

High 8.5

In plain English

A high-severity path traversal in Wallos from ellite. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 44% of all known vulnerabilities).

Severity (CVSS 4.0)8.5High

Exploit odds (30 days)0.5%top 56.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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 (as reported)

Vendor	Product	Versions
ellite	Wallos	< 4.9.6

Weakness: CWE-22 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

References

https://github.com/ellite/Wallos/security/advisories/GHSA-3vg2-cxpg-m43g x_refsource_CONFIRM
https://github.com/ellite/Wallos/pull/1092 x_refsource_MISC
https://github.com/ellite/Wallos/commit/b75f13d0ffa3ed7e77e8e79e4b9fd3fc528c98d3 x_refsource_MISC
https://github.com/ellite/Wallos/releases/tag/v4.9.6 x_refsource_MISC