Privilege escalation in Linecorp Onigiriya-Musubee
CVE-2023-39740
The leakage of the client secret in Onigiriya-musubee Line 13.6.1 allows attackers to obtain the channel access token and send crafted broadcast messages.
Vulnerability class: Privilege Escalation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N.
EPSS exploit prediction
EPSS: 0.006 (45.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 45.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Linecorp Onigiriya-Musubee — versions 13.6.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/syz913/CVE-reports/blob/main/CVE-2023-39740.md (Exploit, Third Party Advisory)
- liff.line.me/1657597257-0ozj8DwJ (Product)
Frequently asked questions
- What is CVE-2023-39740?
- CVE-2023-39740 is a high-severity vulnerability in Linecorp Onigiriya-Musubee, classified under Improper Privilege Management. CVSS score: 8.2/10. Published 2023-10-25.
- How severe is CVE-2023-39740?
- High severity. CVSS v3 base score is 8.2 out of 10.
- Is CVE-2023-39740 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.