high8.9
CVE-2026-82654
SiYuan before v3.8.1 fails to properly escape block name, alias, and memo fields in hint, backlink, and breadcrumb rendering functions.
Impact
SiYuan before v3.8.1 fails to properly escape block name, alias, and memo fields in hint, backlink, and breadcrumb rendering functions. Attackers can set a block's name to contain HTML/script tags that execute when another user views documents referencing or displaying that block.
Affected products
| Product | Affected versions |
|---|---|
| SiYuan | before 3.8.1 |
Versions were read from the advisory text. No structured product data has been published for this record yet.