CVE-2026-21721(grafana / cvss 8.1)
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0-day
보고서를 쓴지 얼마 안되었을때 쓴 보고서라서 그런지 지금 보기에는 고칠점이 많지만 다행히 grafana 측에서 정보를 더 요청하지 않고 바로 accept 해 주었다.1. SummaryThe dashboard permissions API does not verify the target dashboard scope and only checks the dashboards.permissions:* action. As a result, a user who has permission management rights on one dashboard can read and modify permissions on other dashboards. This is an organization‑internal privilege ..
CVE-2025-66514(Nextcloud Mail / cvss 5.4)
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0-day
SummaryA stored HTML injection exists in Nextcloud Mail’s message list (“Envelope”). The message subject is rendered with v-html without proper escaping in the non-draft path. As a result, an attacker can inject HTML such as into the subject. Inline-script XSS attempts (e.g., ) are attempted but do not execute under the default CSP that blocks inline handlers; however, if CSP is bypassed, the s..
CVE-2025-66558(nextcloud twofactor_webauthn / cvss 3.1)
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0-day
A critical authentication bypass vulnerability exists in the Nextcloud TwoFactor WebAuthn app that allows attackers to overwrite other users' WebAuthn credentials. The PublicKeyCredentialEntityMapper::insertOrUpdate() method searches for existing credentials using only the public_key_credential_id without validating the user_handle, enabling cross-user credential hijacking.Steps To Reproduce:Set..