Auth bypass in Skylark
CVE-2023-40530
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.
Vulnerability class: Broken Access Control
EPSS: 0.005 (39.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N.
Affected products
- Skylark
- Skylark Holdings Co., Ltd. 'Skylark' App For Android — versions 6.2.13 and earlier
- Skylark Holdings Co., Ltd. 'Skylark' App For Ios — versions 6.2.13 and earlier
Weakness classification (CWE)
Public proof-of-concept exploits
References
- vultures@jpcert.or.jp (Product)
- vultures@jpcert.or.jp (Product)
- vultures@jpcert.or.jp (Third Party Advisory)
Frequently asked questions
- What is CVE-2023-40530?
- CVE-2023-40530 is a medium-severity vulnerability in Skylark, classified under Missing Authorization. CVSS score: 4.7/10. Published 2023-08-25.
- How severe is CVE-2023-40530?
- Medium severity. CVSS v3 base score is 4.7 out of 10.
- Is CVE-2023-40530 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.