CVE-2026-87811

SiYuan before v3.8.2 is affected by a Stored XSS vulnerability in its notebook configuration feature. The root cause is improper attribute encoding when persisted notebook template paths are inserted into HTML input value attributes. An attacker can craft a malicious template path that breaks out...

PT-2026-88949

SiYuan before v3.8.2 inserts persisted notebook template paths into HTML input value attributes without proper attribute encoding. Attackers can craft malicious template paths that break out of the attribute context and execute JavaScript when a victim opens notebook configuration, enabling...

CVE-2026-87811: Improper Neutralization of Input During Web Page Generation

SiYuan before v3.8.2 inserts persisted notebook template paths into HTML input value attributes without proper attribute encoding. Attackers can craft malicious template paths that break out of the attribute context and execute JavaScript when a victim opens notebook configuration, enabling...

SiYuan: The publish-access gate treats encrypted notebooks as publicly accessible by default, allowing anonymous readers to retrieve fully decrypted document content while a notebook is unlocked

CVE: This vulnerability corresponds to CVE-2026-72789. Summary publishAccess.json is an opt-out list. The publish gate returns accessible for anything not explicitly listed in it. Encrypted notebooks are never written into that file, because only the administrator-gated setPublishAccess writes it...

EUVD-2026-57450

SiYuan: Notebook name, document count, size and timestamps are returned for any notebook, including notebooks hidden from readers, by /api/notebook/getNotebookInfo...

SiYuan: Notebook name, document count, size and timestamps are returned for any notebook, including notebooks hidden from readers, by /api/notebook/getNotebookInfo

CVE: This vulnerability corresponds to CVE-2026-72790. Relationship to GHSA-8x84-r2ff-h8pq please read first getNotebookInfo is named in the earlier advisory GHSA-8x84-r2ff-h8pq, in its remediation section, which asked for reader filtering on both getNotebookConf and getNotebookInfo. Commit...

GHSA-74PJ-6G7R-J55C SiYuan: Notebook name, document count, size and timestamps are returned for any notebook, including notebooks hidden from readers, by /api/notebook/getNotebookInfo

CVE: This vulnerability corresponds to CVE-2026-72790. Relationship to GHSA-8x84-r2ff-h8pq please read first getNotebookInfo is named in the earlier advisory GHSA-8x84-r2ff-h8pq, in its remediation section, which asked for reader filtering on both getNotebookConf and getNotebookInfo. Commit...

GHSA-H4V5-CRX2-3CV4 SiYuan: Non-administrator responses from /api/system/getConf omit three secrets that the configuration-export path explicitly strips, disclosing the session-cookie signing key and the OS username to anonymous readers

CVE: This vulnerability corresponds to CVE-2026-72793. Summary /api/system/getConf is registered with CheckAuth only and is reachable by the publish RoleReader token, and anonymously when Publish.Auth.Enable is false. Its non-administrator masking chain is a blocklist that enumerates fields...

GHSA-F2RW-W22V-54VH SiYuan: getEncryptedNotebookStatus discloses names and current lock/unlock state of all encrypted notebooks to anonymous readers

CVE: This vulnerability corresponds to CVE-2026-72797. Summary POST /api/notebook/getEncryptedNotebookStatus returns the identifier, name, and current lock state of every encrypted notebook, with no publish-access filtering. The route is registered CheckAuth only, no CheckReadonly, no...

EUVD-2026-57457

SiYuan: getEncryptedNotebookStatus discloses names and current lock/unlock state of all encrypted notebooks to anonymous readers...

CVE-2026-85578

SiYuan through 3.8.1 contains an authorization bypass in the /api/file/getFile endpoint. Attackers with reader role can retrieve files from notebooks explicitly configured as Visible:false , gaining access to private workspace files including notebook metadata and internal configuration by knowin...

CVE-2026-85578 SiYuan through 3.8.1 Authorization Bypass via getFile

SiYuan through 3.8.1 contains an authorization bypass vulnerability in the /api/file/getFile endpoint that allows readers to retrieve files from notebooks explicitly configured as Visible:false. Attackers with reader role can access private workspace files including notebook metadata and internal...

CVE-2026-85578 SiYuan through 3.8.1 Authorization Bypass via getFile

SiYuan through 3.8.1 contains an authorization bypass vulnerability in the /api/file/getFile endpoint that allows readers to retrieve files from notebooks explicitly configured as Visible:false. Attackers with reader role can access private workspace files including notebook metadata and internal...

EUVD-2026-71001

SiYuan through 3.8.1 contains an authorization bypass vulnerability in the /api/file/getFile endpoint that allows readers to retrieve files from notebooks explicitly configured as Visible:false. Attackers with reader role can access private workspace files including notebook metadata and internal...

CVE-2026-85578 SiYuan through 3.8.1 Authorization Bypass via getFile

SiYuan through 3.8.1 contains an authorization bypass vulnerability in the /api/file/getFile endpoint that allows readers to retrieve files from notebooks explicitly configured as Visible:false. Attackers with reader role can access private workspace files including notebook metadata and internal...

PT-2026-85478

Name of the Vulnerable Software and Affected Versions SiYuan versions prior to 3.8.2 Description An authorization bypass exists in the '/api/file/getFile' endpoint. Users with a reader role can retrieve files from notebooks configured as Visible:false if they know the hidden notebook identifier a...

SiYuan: Encrypted-notebook key-derivation material and wrapped notebook keys disclosed to anonymous readers, enabling offline master-password cracking

CVE: This vulnerability corresponds to CVE-2026-72801. Summary Two CheckAuth-only endpoints disclose the complete offline attack material for the encrypted-notebook master password, plus the wrapped per-notebook key needed to use it. Both are reachable by the publish RoleReader token and by the...

GHSA-8X84-R2FF-H8PQ SiYuan: Encrypted-notebook key-derivation material and wrapped notebook keys disclosed to anonymous readers, enabling offline master-password cracking

CVE: This vulnerability corresponds to CVE-2026-72801. Summary Two CheckAuth-only endpoints disclose the complete offline attack material for the encrypted-notebook master password, plus the wrapped per-notebook key needed to use it. Both are reachable by the publish RoleReader token and by the...

EUVD-2026-58626

SiYuan: SQL injection in backlink/mention search via unescaped stored and client input publish mode: first-order client keyword and second-order stored document title breakout on read-write handle...

SiYuan: Unauthenticated arbitrary SQL execution via searchEmbedBlock (publish mode) : reader-reachable raw statement on read-write handle, cross-notebook read/write

CVE: This vulnerability corresponds to CVE-2026-69084. Summary The /api/search/searchEmbedBlock endpoint passes a client-supplied SQL statement verbatim to the database with no validation. The endpoint is gated by CheckAuth only reachable by the publish RoleReader token, and by the anonymous...