Lute is a structured Markdown engine supporting Go and JavaScript. Lute 1.7.6 and earlier (as used in SiYuan before) has a Stored Cross-Site Scripting (XSS) vulnerability in the Markdown rendering engine. An attacker can inject malicious JavaScript into a Markdown text/note. When another user clicks the rendered content, the script executes in the context of their session.
{
"cwe_ids": [
"CWE-79"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25647.json",
"cna_assigner": "GitHub_M"
}{
"source": "REFERENCES"
}{
"cpe": "cpe:2.3:a:b3log:siyuan:3.5.4:-:*:*:*:*:*:*",
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "3.5.5"
},
{
"introduced": "3.5.4-NA"
},
{
"last_affected": "3.5.4-NA"
}
],
"source": [
"AFFECTED_FIELD",
"CPE_STRING"
]
}