CVE-2024-41918Network attack vector

Phishing redirects via unrestricted custom URL handling

Published Aug 29, 2024 · Updated Aug 29, 2024

Improper authorization in Rakuten Ichiba App 12.4.0 and earlier on Android and 11.7.0 and earlier on iOS allows remote phishing redirects. The custom URL scheme handler accepts an unrestricted requested URL from an Intent and loads the arbitrary site in the app's WebView. The attack requires user interaction and an Intent from another installed application; successful redirection presents unauthorized content and supports phishing.

CVSS severity3.1
Low
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authorization in Rakuten Ichiba App 12.4.0 and earlier on Android and 11.7.0 and earlier on iOS allows remote phishing redirects. The custom URL scheme handler accepts an unrestricted requested URL from an Intent and loads the arbitrary site in the app's WebView. The attack requires user interaction and an Intent from another installed application; successful redirection presents unauthorized content and supports phishing.

The record

CVE
CVE-2024-41918
Published
Aug 29, 2024
Updated
Aug 29, 2024
Vendor
Rakuten Group, Inc.
Product
Rakuten Ichiba
Classifications
CWE-862, CWE-939, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 29, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 29, 2024Record 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 <11.7.0
  2. Affected versionversion=0 <12.4.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Rakuten Group, Inc. · Rakuten Ichibaversion=0 <11.7.0; version=0 <12.4.0
Rakuten Group, Inc. · Rakuten Ichiba Appversion=11.7.0 and earlier; version=12.4.0 and earlier

Published CVSS scores

3.1JPCERT/CCCVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N
6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
3.1CISA-ADPCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N

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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
CWE-939Improper Authorization in Handler for Custom URL Scheme
T1204.001Malicious Link

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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