User Enumeration in Crazy Bubble Tea mobile application

7.1 CVSS

Vulnerability Description

In Crazy Bubble Tea mobile application authenticated attacker can obtain personal information about other users by enumerating a `loyaltyGuestId` parameter. Server does not verify the permissions required to obtain the data. This issue was fixed in version 915 (Android) and 7.4.1 (iOS).

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

Tobiasz „Palidon” Kostrzewa

References

Affected Vendor

Emaintenance

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Affected Software

Crazy Bubble Tea

Vulnerable Versions:

Timeline

Official Publish: January 14th, 2026

Last Modified: January 14th, 2026

Added to House: July 22nd, 2026

CVSS Vectors

Weaknesses (CWE)

CWE-359

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.