CVE-2026-33400: Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.7.0, a stored cross-site scripting (XSS) vulnerability in the payment…

PriorityP426medium5.4CVSS 3.1

AVNACLPRLUIRSCCLILAN

EPSS

0.19%

9.2th percentile

Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.7.0, a stored cross-site scripting (XSS) vulnerability in the payment method rename endpoint allows any authenticated user to inject arbitrary JavaScript that executes when any user visits the Settings, Subscriptions, or Statistics pages. Combined with the wallos_login authentication cookie lacking the HttpOnly flag, this enables full session hijacking. This issue has been patched in version 4.7.0.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
ellite	wallos	< 4.7.0	4.7.0
wallosapp	wallos	< 4.7.0	4.7.0

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