CVE-2025-41459

Local authentication bypass via brute force and injection

Published Jul 21, 2025 · Updated Aug 27, 2025

Improper authentication in Two App Studio Journey 5.5.6 through 5.5.9 on iOS allows local users to access protected app data. The local authentication component accepts unlimited attempts against its four-digit PIN and permits runtime manipulation of biometric checks through dynamic code injection. Local access to the device's file system is required, and runtime manipulation additionally requires a jailbroken phone; successful bypass exposes private journal content and key material.

CVSS severity7.8
High
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authentication in Two App Studio Journey 5.5.6 through 5.5.9 on iOS allows local users to access protected app data. The local authentication component accepts unlimited attempts against its four-digit PIN and permits runtime manipulation of biometric checks through dynamic code injection. Local access to the device's file system is required, and runtime manipulation additionally requires a jailbroken phone; successful bypass exposes private journal content and key material.

The record

CVE
CVE-2025-41459
Published
Jul 21, 2025
Updated
Aug 27, 2025
Vendor
Two App Studio
Product
Journey
Classifications
CWE-287, T1110
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 21, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 27, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=5.5.9

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Two App Studio · Journeyversion=0 <=5.5.9

Published CVSS scores

7.8cirosec GmbHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-287Improper Authentication
T1110Brute Force

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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