Auth bypass in Nexryai Nexkey
CVE-2023-52077
Nexkey is a lightweight fork of Misskey v12 optimized for small to medium size servers. Prior to 12.23Q4.5, Nexkey allows external apps using tokens issued by administrators and moderators to call admin APIs. This allows malicious third-party apps to perform operations such as updating server settings, as well as compromise object storage and email server credentials. This issue has been patched in 12.23Q4.5.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.9 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L.
EPSS exploit prediction
EPSS: 0.007 (51.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Nexryai Nexkey — versions < 12.23Q4.5
Weakness classification (CWE)
References
- github.com/nexryai/nexkey/security/advisories/GHSA-pjj7-7hcj-9cpc (Vendor Advisory)
- github.com/mei23/misskey-v12/commit/78173e376f14fcc1987b02196f5538bf5b18225c (Patch)
- github.com/misskey-dev/misskey/commit/5150053275594278e9eb23e72d98b16593c4c230 (Patch)
- github.com/nexryai/nexkey/commit/a4e4c9c47c5f84ec7ccd309bde59d4ae5d7e5a98 (Patch)
Frequently asked questions
- What is CVE-2023-52077?
- CVE-2023-52077 is a high-severity vulnerability in Nexryai Nexkey, classified under Incorrect Authorization. CVSS score: 8.9/10. Published 2023-12-27.
- How severe is CVE-2023-52077?
- High severity. CVSS v3 base score is 8.9 out of 10.