EUVD-2026-64270

SiYuan versions before v3.7.4 fail to validate that packageName matches the downloaded package content in bazaar install endpoints. Attackers with same-origin access can overwrite existing trusted plugins by supplying mismatched packageName and repoURL parameters, achieving persistence across...

CVE-2026-62204

SiYuan versions before v3.7.4 contain a plugin overwrite vulnerability in the bazaar install endpoints . The root cause is a failure to validate that the packageName parameter matches the actual downloaded package content. An attacker with same-origin access can supply mismatched packageName and ...

CVE-2026-77086

SiYuan before v3.7.4 fails to validate the packageName parameter in Bazaar install and uninstall endpoints, allowing authenticated administrators to perform path traversal via directory traversal sequences. Attackers with admin access can write arbitrary files to any location via install operatio...

CVE-2026-77086 SiYuan before v3.7.4 Path Traversal via packageName

SiYuan before v3.7.4 fails to validate the packageName parameter in Bazaar install and uninstall endpoints, allowing authenticated administrators to perform path traversal via directory traversal sequences. Attackers with admin access can write arbitrary files to any location via install operatio...

CVE-2026-77086

SiYuan before v3.7.4 contains a path traversal vulnerability in the Bazaar install and uninstall endpoints . The root cause is a failure to validate the packageName parameter, which accepts directory traversal sequences. An authenticated administrator can exploit this to write arbitrary files to ...

EUVD-2026-63898

SiYuan before v3.7.4 fails to validate the packageName parameter in Bazaar install and uninstall endpoints, allowing authenticated administrators to perform path traversal via directory traversal sequences. Attackers with admin access can write arbitrary files to any location via install operatio...

SUSE CVE-2026-54070

SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, renderPackageREADME in kernel/bazaar/readme.go renders a Bazaar package README from Markdown to HTML with the lute engine and SetSanitizetrue. The lute sanitizer is an event-handler blocklist: allowAttr rejects only...

CVE-2026-66395

SiYuan desktop before v3.7.2 contains a reflected cross-site scripting vulnerability in the bazaar plugin readme handler that allows attackers to execute arbitrary code by crafting a malicious siyuan:// deep link. Attackers can inject HTML payloads via the plugin name parameter that execute with...

CVE-2026-66395 SiYuan Desktop before v3.7.2 Reflected XSS to RCE via siyuan Protocol

SiYuan desktop before v3.7.2 contains a reflected cross-site scripting vulnerability in the bazaar plugin readme handler that allows attackers to execute arbitrary code by crafting a malicious siyuan:// deep link. Attackers can inject HTML payloads via the plugin name parameter that execute with...

CVE-2026-66395

SiYuan desktop before v3.7.2 contains a reflected cross-site scripting vulnerability in the bazaar plugin readme handler that allows attackers to execute arbitrary code by crafting a malicious siyuan:// deep link. Attackers can inject HTML payloads via the plugin name parameter that execute with...

EUVD-2026-49328

SiYuan desktop before v3.7.2 contains a reflected cross-site scripting vulnerability in the bazaar plugin readme handler that allows attackers to execute arbitrary code by crafting a malicious siyuan:// deep link. Attackers can inject HTML payloads via the plugin name parameter that execute with...

CVE-2026-66395

SiYuan Desktop before v3.7.2 is affected by a reflected XSS in the bazaar plugin readme handler that enables RCE via a crafted siyuan:// deep link. An attacker can inject HTML payloads through the plugin name parameter, which render with insertAdjacentHTML in an insecure Electron renderer and gra...

CVE-2026-66395 SiYuan Desktop before v3.7.2 Reflected XSS to RCE via siyuan Protocol

SiYuan desktop before v3.7.2 contains a reflected cross-site scripting vulnerability in the bazaar plugin readme handler that allows attackers to execute arbitrary code by crafting a malicious siyuan:// deep link. Attackers can inject HTML payloads via the plugin name parameter that execute with...

PT-2026-64996

Name of the Vulnerable Software and Affected Versions SiYuan desktop versions prior to 3.7.2 Description A reflected cross-site scripting issue exists in the bazaar plugin readme handler. An attacker can execute arbitrary code by crafting a malicious siyuan:// deep link. By injecting HTML payload...

GO-2026-5965 SiYuan: Stored XSS in Bazaar marketplace via package README event handlers in github.com/siyuan-note/siyuan/kernel

SiYuan: Stored XSS in Bazaar marketplace via package README event handlers in github.com/siyuan-note/siyuan/kernel...

[SECURITY] Fedora 44 Update: breezy-3.3.21-2.fc44

Breezy brz is a decentralized revision control system, designed to be easy for developers and end users alike. By default, Breezy provides support for both the Bazaar and Git file formats...

EUVD-2026-39126

SiYuan: Stored XSS in Bazaar marketplace via package README event handlers...

SiYuan: Stored XSS in Bazaar marketplace via package README event handlers

Summary renderPackageREADME in kernel/bazaar/readme.go renders a Bazaar package README from Markdown to HTML with the lute engine and SetSanitizetrue. The lute sanitizer is an event-handler blocklist: allowAttr rejects only attribute names present in a fixed eventAttrs map copied from the w3schoo...

GHSA-W7CG-WHH7-XP28 SiYuan: Stored XSS in Bazaar marketplace via package README event handlers

Summary renderPackageREADME in kernel/bazaar/readme.go renders a Bazaar package README from Markdown to HTML with the lute engine and SetSanitizetrue. The lute sanitizer is an event-handler blocklist: allowAttr rejects only attribute names present in a fixed eventAttrs map copied from the w3schoo...

CVE-2026-59833

SiYuan is an open-source personal knowledge management system. Prior to 3.7.1, SiYuan renders note and package content to HTML through the Lute engine with sanitization enabled, but Lute's dangerous javascript scheme block does not check form action or SVG xlink:href attributes, allowing stored...