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-2026-62204 SiYuan before v3.7.4 Plugin Overwrite via Bazaar Install

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 before v3.7.4 Plugin Overwrite via Bazaar Install

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...

PT-2026-79545

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: Insufficient Verification of Data Authenticity

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-2026-77086

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...

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...

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 ...

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...

PT-2026-79358

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: Improper Limitation of a Pathname to a Restricted Directory

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-2026-40922

SiYuan is an open-source personal knowledge management system. In versions 3.6.1 through 3.6.3, a prior fix for XSS in bazaar README rendering incomplete fix for CVE-2026-33066 enabled the Lute HTML sanitizer, but the sanitizer does not block iframe tags, and its URL-prefix blocklist does not...

SUSE CVE-2026-45375

SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, SiYuan's Bazaar community marketplace renders the name and version fields of a package's plugin.json and the equivalent theme.json / template.json / widget.json / icon.json into the Settings - Marketplace UI without HT...

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 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...

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...