EUVD-2026-68806Severity by source
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Admin credentials required (PR:H), network-accessible endpoint (AV:N); webshell placement yields full RCE yielding C:H/I:H/A:H on the vulnerable system.
Primary rating from Vendor (GitHub_M).
CVSS VectorVendor: GitHub_M
Lifecycle Timeline
5DescriptionCVE.org
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.
Articles & Coverage 1
AnalysisAI
Zip Slip path traversal in Wallos's database restore endpoint allows an authenticated administrator to write arbitrary files - including PHP webshells - directly into the application webroot. The flaw exists in POST /endpoints/db/restore.php, where ZipArchive::extractTo() processes ZIP entries without sanitizing ../ sequences, enabling directory escape before any extension-based filtering runs. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires valid administrator-level credentials to the Wallos application - the restore endpoint is an authenticated admin function and not accessible to regular users or unauthenticated visitors. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 base score of 8.5 (AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N) accurately reflects the attack profile: network-reachable, no interaction or special attack conditions, but requiring administrator-level credentials (PR:H). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade to Wallos v4.9.6, which patches this vulnerability via commit b75f13d0ffa3ed7e77e8e79e4b9fd3fc528c98d3 (https://github.com/ellite/Wallos/commit/b75f13d0ffa3ed7e77e8e79e4b9fd3fc528c98d3); the release is available at https://github.com/ellite/Wallos/releases/tag/v4.9.6. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: identify all Wallos instances in production and inventory all accounts with administrator privileges; immediately restrict network-level access to the database restore endpoint (POST /endpoints/db/restore.php) to a minimal set of authorized personnel only, and enforce multi-factor authentication on all administrator accounts. …
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Same weakness CWE-22 – Path Traversal
View allSame technique Path Traversal
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External POC / Exploit Code
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