EUVD-2026-68799Severity by source
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/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
AC:H because exploitation requires the specific precondition of an empty user table; A:H added because replacing the database destroys all existing user data.
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 4.9.4, endpoints/db/import.php has no authentication. The only guard is a user-table row count - if zero (fresh/unconfigured install), an unauthenticated attacker can replace the entire database. This issue has been patched in version 4.9.4.
Articles & Coverage 1
AnalysisAI
Wallos prior to 4.9.4 exposes its database import endpoint at endpoints/db/import.php with no authentication, allowing a remote unauthenticated attacker to fully replace the application's SQLite database on any fresh or unconfigured instance. The sole guard - a user-table row count of zero - is a setup-state check, not a security control, meaning any newly deployed Wallos instance is vulnerable before the first administrator account is created. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the target Wallos instance to be in a fresh or unconfigured state - specifically, the users table must contain zero rows at the moment of the attack. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 score of 8.2 with VI:H and AT:P captures the high integrity impact while correctly flagging that a specific attack precondition exists. … 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 v4.9.5 or later; v4.9.4 introduced the security fix but ships a broken container image that fails to start, so v4.9.5 is the minimum viable patched release. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: inventory all Wallos deployments and their versions; block external network access to endpoints/db/import.php on any instance running a version prior to 4.9.4. …
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Same weakness CWE-287 – Improper Authentication
View allSame technique Authentication Bypass
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External POC / Exploit Code
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