CVE-2026-61639

8.5 highEPSS 0.5%

High (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.

Severity

CVSS 4.0

8.5 high

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

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 43% of CVEs (scores of 2026-10-31)
CWE: CWE-22
Published: 2026-08-31
Modified: 2026-09-08
Record from: the NVD, synced 2026-10-19

References

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

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