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CVE-2026-61639

Wallos: Zip Slip path traversal in database restore writes files to webroot

HIGH
8.5
CVSS Score
Published: August 31, 2026 at 08:44 PM UTC
Updated: September 8, 2026 at 09:29 PM UTC
1 product affected across 1 vendorWallos

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Severity
HIGH8.5
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Wallos· Ellite
60%
v < 4.9.6
Affected range stops below 4.9.6, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (4)

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

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.5HIGHGitHub_M
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-22

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