CVE-2026-87813High· 7.3▾ MidnightPoC availableSiYuan before v3.8.2 contains a stored cross-site scripting vulnerability in the Search Assets result list where asset filenames are interpolated into HTML without escaping. Authenticated attackers can craft asset filenames containing ma…
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 40.2 · likelihood 0.1 · exploitation 12
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Sep 11.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Exploit / PoC code exists
0.3%
SiYuan before v3.8.2 contains a stored cross-site scripting vulnerability in the Search Assets result list where asset filenames are interpolated into HTML without escaping. Authenticated attackers can craft asset filenames containing malicious markup that executes JavaScript in the victim's browser when searching assets, enabling same-origin API requests and application state manipulation.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-66396High· 8.4SiYuan before v3.7.2 fails to escape the title-img Individual Attribute List value when rendering Gallery and Kanban cover images, allowing stored cross-site scripting via unescaped style attribute interpolation
CVE-2026-66395Critical· 9.6SiYuan desktop before v3.7.2 contains a reflected cross-site scripting vulnerability in the bazaar plugin readme handler that allows attackers to execute arbitrary code by crafting a malicious siyuan:// deep link
CVE-2026-65605Critical· 9.6SiYuan before v3.7.2 contains a stored cross-site scripting vulnerability in Attribute View (database) cell rendering
CVE-2026-65606Critical· 9.6SiYuan before v3.7.2 contains a cross-site scripting vulnerability in the siyuan:// protocol handler
CVE-2026-92985High· 8.8SiYuan versions before 3.8.4 fail to escape bookmark labels imported from notebook files when rendering them in the dock tree
CVE-2026-87811High· 7.3SiYuan before v3.8.2 inserts persisted notebook template paths into HTML input value attributes without proper attribute encoding