CVE-2025-24897: Misskey CSRF vulnerability due to insecure configuration of authentication cookie attributes
Description
Misskey is an open source, federated social media platform. Starting in version 12.109.0 and prior to version 2025.2.0-alpha.0, due to a lack of CSRF protection and the lack of proper security attributes in the authentication cookies of Bull's dashboard, some of the APIs of bull-board may be subject to CSRF attacks. There is a risk of this vulnerability being used for attacks with relatively large impact on availability and integrity, such as the ability to add arbitrary jobs. This vulnerability was fixed in 2025.2.0-alpha.0. As a workaround, block all access to the `/queue` directory with a web application firewall (WAF).
Classification
CVE ID: CVE-2025-24897
CVSS Base Severity: HIGH
CVSS Base Score: 8.2
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:L
Affected Products
Vendor: misskey-dev
Product: misskey
Exploit Prediction Scoring System (EPSS)
EPSS Score: 0.04% (probability of being exploited)
EPSS Percentile: 11.94% (scored less or equal to compared to others)
EPSS Date: 2025-03-12 (when was this score calculated)
References
https://github.com/misskey-dev/misskey/security/advisories/GHSA-38w6-vx8g-67pphttps://github.com/misskey-dev/misskey/commit/77e421029cb564a97f42b6e41c9edce49f79cecd