Misskey is an open source, decentralized social media platform. Third-party applications may be able to access some endpoints or Websocket APIs that are incorrectly specified as [kind](https://github.com/misskey-dev/misskey/blob/406b4bdbe79b5b0b68fcdcb3c4b6e419460a0258/packages/backend/src/server/api/endpoints.ts#L811) or [secure](https://github.com/misskey-dev/misskey/blob/406b4bdbe79b5b0b68fcdcb3c4b6e419460a0258/packages/backend/src/server/api/endpoints.ts#L805) without the user's permission and perform operations such as reading or adding non-public content. As a result, if the user who authenticated the application is an administrator, confidential information such as object storage secret keys and SMTP server passwords will be leaked, and general users can also create invitation codes without permission and leak non-public user information. This is patched in version [2023.12.1](https://github.com/misskey-dev/misskey/commit/c96bc36fedc804dc840ea791a9355d7df0748e64).
Published 2023-12-29 18:15:39
Updated 2024-01-05 18:43:04
Source GitHub, Inc.
View at NVD,   CVE.org
Vulnerability category: BypassGain privilege

Exploit prediction scoring system (EPSS) score for CVE-2023-52139

Probability of exploitation activity in the next 30 days: 0.05%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 17 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2023-52139

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source
9.6
CRITICAL CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
3.1
5.8
NIST
9.0
CRITICAL CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
2.3
6.0
GitHub, Inc.

CWE ids for CVE-2023-52139

  • The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.
    Assigned by: security-advisories@github.com (Primary)

References for CVE-2023-52139

Products affected by CVE-2023-52139

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