cvedb.io
CVE-2025-24900
HIGH · CVSS 8.6
EPSS exploitation probability: 0%
Published 2025-02-11T16:15:51.763 · Last modified 2026-06-17T08:59:48.720

Summary

Concorde, formerly know as Nexkey, is a fork of the federated microblogging platform Misskey. Due to a lack of CSRF countermeasures and improper settings of cookies for MediaProxy authentication, there is a vulnerability that allows MediaProxy authentication to be bypassed. In versions prior to 12.25Q1.1, the authentication cookie does not have the SameSite attribute. This allows an attacker to bypass MediaProxy authentication and load any image without restrictions under certain circumstances. In versions prior to 12.24Q2.3, this cookie was also used to authenticate the job queue management page (bull-board), so bull-board authentication is also bypassed. This may enable attacks that have a significant impact on availability and integrity. The affected versions are too old to be covered b

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.