{"apiVersion":"1.0","identifier":"CVE-2026-72812","description":"SiYuan versions before v3.7.4 contain a missing authorization vulnerability in the /api/ref/refreshBacklink endpoint that allows anonymous readers to trigger persistent server-side writes. Attackers can invoke the endpoint with an attacker-controlled block ID to flush transaction queues, scan all references globally, and enqueue database writes, bypassing read-only protections and enabling resource amplification attacks.","publishedAt":"2026-08-14T12:16:44","lastModifiedAt":"2026-08-26T16:57:52","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-72812","cvssScore":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","epssProbability":0.00275,"riskScore":0.67,"affectedProduct":"SiYuan","affectedVersions":"<3.7.4","vulnerabilityType":"Web app","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-72812","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-72812","en":"https://www.redsauce.net/en/cves/CVE-2026-72812","fr":"https://www.redsauce.net/fr/cves/CVE-2026-72812","pt":"https://www.redsauce.net/pt/cves/CVE-2026-72812","de":"https://www.redsauce.net/de/cves/CVE-2026-72812","sk":"https://www.redsauce.net/sk/cves/CVE-2026-72812","el":"https://www.redsauce.net/el/cves/CVE-2026-72812"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-72812"}}