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.

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Advisories

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Fixes

Solution

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Workaround

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History

Tue, 24 Mar 2026 18:00:00 +0000

Type Values Removed Values Added
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.
Title Wallos: Stored cross-site scripting (XSS) vulnerability in the payment method rename endpoint
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-03-24T17:45:27.144Z

Reserved: 2026-03-19T17:02:34.170Z

Link: CVE-2026-33400

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-03-24T18:16:11.310

Modified: 2026-03-24T18:16:11.310

Link: CVE-2026-33400

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses