CVE-2026-72811
CRITICAL
9,9
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A
CRITICAL
10,0
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: changed
Confidentiality: high
Integrity: high
Availability: none
Description
AI Translation Available
SiYuan versions <= v3.7.2 contain a SQL injection vulnerability in the backlink/mention search query (kernel/model/backlink.go), which concatenates stored block metadata (title, name, alias, anchor text) and the client-supplied keyword into a SQL MATCH/search statement while escaping only the double-quote character and not the single quote. A single quote in the client keyword (first-order, reachable by an anonymous or RoleReader user on the publish surface) or in stored document metadata (second-order) breaks out of the string literal. Because the query runs on the main read-write siyuan.db handle via a statement-stacking-capable driver, an attacker can execute arbitrary SQL, enabling cross-notebook read and write. Fixed in v3.7.4.
89
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
StableCommon Consequences
Security Scopes Affected:
Confidentiality
Integrity
Availability
Authentication
Access Control
Potential Impacts:
Execute Unauthorized Code Or Commands
Read Application Data
Gain Privileges Or Assume Identity
Bypass Protection Mechanism
Modify Application Data
Applicable Platforms
Languages:
Not Language-Specific, SQL
Technologies:
Database Server
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-q2vg-7qgx-x5fc
https://www.vulncheck.com/advisories/siyuan-before-sql-injection-via-backlink-s…