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CVE-2026-33400

nvd nist
Published: Mar 24, 2026Modified: Jun 17, 2026

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5.4
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Exploitability: 2.3 / Impact: 2.7
Source: security-advisories@github.com (Secondary)

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.

Affected (1)

Products: Wallosapp: Wallos
Wallosapp
1 product
Wallos
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Wallos
Before 4.7.0

Related CWEs

CWE-79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

References (2)

Source: security-advisories@github.com
Patch
Source: security-advisories@github.com
ExploitVendor Advisory

Timeline

No history available yet.