SiYuan through 3.8.4 renders notebook names as raw HTML in the Daily Note picker dialog without escaping, allowing stored cross-site scripting in the Electron renderer. Attackers can create notebooks with HTML payloads in names that execute JavaScript with Node.js access when the picker opens, enabling operating system command execution.
{
"cna_assigner": "VulnCheck",
"cwe_ids": [
"CWE-79"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93922.json"
}{
"extracted_events": [
{
"introduced": "0"
},
{
"last_affected": "3.8.4"
},
{
"fixed": "3.8.4"
}
],
"source": [
"AFFECTED_FIELD",
"DESCRIPTION"
]
}