CVE-2026-33400

MEDIUM

5.4

Description

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.

CVE Details

CVSS v3.1 Score5.4

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionREQUIRED

Published3/24/2026

Last Modified3/26/2026

Sourcenvd

Honeypot Sightings0

Affected Products

wallosapp:wallos

Weaknesses (CWE)

CWE-79

References

https://github.com/ellite/Wallos/commit/e87387f0ebb540cd33e6dfda7181db9db650ecef(security-advisories@github.com)

https://github.com/ellite/Wallos/security/advisories/GHSA-p6v5-227f-f3fv(security-advisories@github.com)

IOC Correlations

No correlations recorded

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