TI-2023-21339 Aliases CVE-2023-40530 GHSA-prv9-x3jf-3mm9

Missing authorization in SKYLARK HOLDINGS CO., LTD. 'Skylark' App for Android

LOW 22CWE-862Published 2023-08-25 · Updated 2024-10-02

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: None · Low · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-862.

Summary

Improper authorization in handler for custom URL scheme issue in 'Skylark' App for Android 6.2.13 and earlier and 'Skylark' App for iOS 6.2.13 and earlier allows an attacker to lead a user to access an arbitrary website via another application installed on the user's device.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00578 47th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
SKYLARK HOLDINGS CO., LTD.	'Skylark' App for Android	up to 6.2.13	—	No fix listed	CNA
SKYLARK HOLDINGS CO., LTD.	'Skylark' App for iOS	up to 6.2.13	—	No fix listed	CNA

'Skylark' App for Android VendorSKYLARK HOLDINGS CO., LTD. Affected up to 6.2.13 Fixed in — No fix listed CNA
'Skylark' App for iOS VendorSKYLARK HOLDINGS CO., LTD. Affected up to 6.2.13 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:a:skylark:skylark::::::android::*	up to 6.2.13	Vulnerable	Skylark
cpe:2.3:a:skylark:skylark::::::iphone_os::*	up to 6.2.13	Vulnerable	Skylark

cpe:2.3:a:skylark:skylark:*:*:*:*:*:android:*:* Versions up to 6.2.13 Vulnerable ·Skylark
cpe:2.3:a:skylark:skylark:*:*:*:*:*:iphone_os:*:* Versions up to 6.2.13 Vulnerable ·Skylark

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2023-40530
2026-10-03 Alias added: GHSA-prv9-x3jf-3mm9

References

Advisory 1

https://jvn.jp/en/jp/JVN03447226/

Other 2

TI-2024-36169 Improper authorization in handler for custom URL scheme issue in 'Skylark' App for… CVSS 3.0LOW 3.6

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences