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01 Record

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

UnratedPUBLISHEDCNA: jpcert
CNA base scoreUnratedNo CNA CVSS vector

02 Description

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

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.57% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 47.3% of scored records. A rank, not a probability.
NVD base score
4.7 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2023-08-25 03:47Z3 YR AGO
Last updated
2024-10-02 18:13Z2 YR AGO
Reserved
2023-08-15
Assigning CNA
jpcert
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
Data version
5.1
Document digest
7cdf453251a9cbf8c7c8473ec62912b3ad4e3a092c100d031bedab152bdf7669

05 Affected products

VendorProductVersionsPlatforms
SKYLARK HOLDINGS CO., LTD.'Skylark' App for Android6.2.13 and earlier—
SKYLARK HOLDINGS CO., LTD.'Skylark' App for iOS6.2.13 and earlier—

06 References