CVE-2026-30926
HighSummary
SiYuan to system zarządzania wiedzą osobistą. Przed wersją 3.5.10 występuje podatność na eskalację uprawnień w usłudze publikacji, która pozwala kontom o niskich uprawnieniach (RoleReader) na modyfikację treści notatników za pomocą punktu końcowego /api/block/appendHeadingChildren.
Risk Assessment
Podatność ta umożliwia zdalnym użytkownikom z autoryzacją, posiadającym jedynie uprawnienia do odczytu, dodawanie nowych bloków do istniejących dokumentów, co narusza integralność przechowywanych notatek.
Recommendation
Zaleca się aktualizację SiYuan do wersji 3.5.10 lub nowszej, aby usunąć tę podatność oraz wprowadzenie dodatkowych kontroli uprawnień w usłudze publikacji.
Related vulnerabilities
- CVE-2026-81855Critical
A hardcoded cryptographic client authentication key vulnerability exists in the robot testing framework component of Wärtsilä FOS-Onboard. The key is embedded in the software and cannot be changed by administrators.
- CVE-2026-78225Critical
A hardcoded cryptographic server key vulnerability exists in the deployer-ng Update Controller component of Wärtsilä FOS-Onboard. The key is embedded in the software and cannot be changed by administrators.
- CVE-2026-73807Critical
The mySCADA myPRO Manager command API does not properly enforce authentication for privileged functions. An unauthenticated attacker with network access to the affected API could exploit this vulnerability to access privileged management functions.
- CVE-2026-73437Critical
On affected platforms running Arista EOS with Dynamic Host Configuration Protocol (DHCP) relay configured, an unauthenticated attacker with network access could send a crafted DHCP reply packet from an IP address that is not configured as a helper address, and the relay agent would forward it to clients without validating the source.
- CVE-2026-61560Critical
`@zereight/mcp-gitlab` is a Model Context Protocol server for GitLab. Prior to version 2.1.27, the SSE transport mode (`SSE=true`) exposes all MCP tools without any authentication. The `upload_markdown` tool reads arbitrary files from the server's local filesystem via an unsanitized `file_path` parameter and uploads them to a GitLab project.
- CVE-2026-91939Critical
Cotonti 1.0.0 Comments plugin passes the ci GET parameter to unserialize() without allowed_classes restriction, allowing unauthenticated attackers to instantiate arbitrary PHP classes with attacker-controlled properties. Attackers can exploit PHP object injection through crafted serialized payloads to trigger gadget chains and achieve database manipulation or code execution.
- CVE-2026-68491Critical
An insufficient check allowed for the overwrite of arbitrary files via a symlink. Technical details were not provided in the description.
- CVE-2026-66890Critical
The affected products use hard-coded credentials, which could allow remote access to files with root privileges where FTP is reachable. Technical details were not provided in the description.
- CVE-2026-66887Critical
The affected products are missing authorization on state-changing CGIs and session checks are not performed. Technical details were not provided in the description.
- CVE-2026-61568Critical
`@zereight/mcp-gitlab` is a Model Context Protocol server for GitLab. Versions prior to 2.1.30 expose the Streamable HTTP MCP endpoint without an effective Host or Origin allowlist. A malicious web page can use DNS rebinding to route browser requests to a victim's local MCP listener while preserving an attacker-controlled `Host` and `Origin`.
Original NVD description (English source)
SiYuan is a personal knowledge management system. Prior to 3.5.10, a privilege escalation vulnerability exists in the publish service of SiYuan Note that allows low-privilege publish accounts (RoleReader) to modify notebook content via the /api/block/appendHeadingChildren API endpoint. The endpoint requires only the model.CheckAuth role, which accepts RoleReader sessions, but it does not enforce stricter checks, such as CheckAdminRole or CheckReadonly. This allows remote authenticated publish users with read-only privileges to append new blocks to existing documents, compromising the integrity of stored notes.

