CVE-2026-50199

Wallos: Cross-user Fixer/API Layer credential consumption in exchange-rate refresh

Published Aug 31, 2026 CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Description
Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.9.1, endpoints/currency/update_exchange.php loads the first Fixer/API Layer credential globally instead of loading the credential for the authenticated user. As a result, a normal authenticated user without their own provider key can trigger exchange-rate refreshes using another user's stored provider credential. This issue has been patched in version 4.9.1.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Ellite
Ellite wallos
Vendors & Products Ellite
Ellite wallos
Type Values Removed Values Added
Description Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.9.1, endpoints/currency/update_exchange.php loads the first Fixer/API Layer credential globally instead of loading the credential for the authenticated user. As a result, a normal authenticated user without their own provider key can trigger exchange-rate refreshes using another user's stored provider credential. This issue has been patched in version 4.9.1.
Title Wallos: Cross-user Fixer/API Layer credential consumption in exchange-rate refresh
Weaknesses CWE-863
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Sep 1, 2026, 2:44 PM
Reserved
Jun 3, 2026, 10:05 PM
Status
Deferred
Published
Aug 31, 2026, 9:17 PM
Modified
Sep 8, 2026, 9:11 PM