Summary
generated automatically from NVD dataMisaka Danmu Server through 2.8.9 has a missing-authentication flaw (CWE-306) in its POST /api/ui/config-history/rollback endpoint, which is not protected. An unauthenticated attacker can use it to write arbitrary configuration keys, for example setting ipWhitelist to their own /32 address or changing trustedProxies and webhookApiKey. Doing so gives access to every protected endpoint as the administrator. The flaw is rated CRITICAL with a CVSS v3.1 score of 9.8.
NVD description
Misaka Danmu Server through 2.8.9 contains an authentication bypass vulnerability that allows unauthenticated attackers to write arbitrary configuration keys via the unprotected POST /api/ui/config-history/rollback endpoint. Attackers can set the ipWhitelist key to their own /32 address, or alter trustedProxies and webhookApiKey, to access every protected endpoint as the administrator.
EPSS · FIRST.org
0.45%probability of exploitation in the next 30 days
Higher than 37% of scored CVEs
EPSS (Exploit Prediction Scoring System) estimates, from observed exploitation activity, how likely a CVE is to be exploited in the next 30 days. It complements CVSS, which measures severity, not likelihood. Score of 2026-10-18, recomputed daily by FIRST.org.
In-depth analysis on cveo.tech
We've published a detailed analysis of this CVE — exploitation, IOCs and mitigation.
CVSS v3.1 Score
Information
- Published
- 16 oct. 2026
- Updated
- 16 oct. 2026
- Status
- Deferred
- Source
- disclosure@vulncheck.com
Weaknesses (CWE)
References (4)
Similar CVEs
Other vulnerabilities of type CWE-306
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