EUVD-2026-49328
GHSA-x52j-m89g-wh64
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Primary rating from Vendor (vulncheck) · only source for this CVE.
CVSS VectorVendor: vulncheck
Lifecycle Timeline
3DescriptionCVE.org
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 full Node.js access through insertAdjacentHTML rendering in an insecurely configured Electron renderer.
AnalysisAI
Reflected cross-site scripting in SiYuan Desktop before v3.7.2 enables remote code execution by luring a user to open a malicious siyuan:// deep link. The vulnerability resides in the bazaar plugin readme handler, which uses insertAdjacentHTML to render unsanitized plugin names from the link, allowing injected JavaScript to run with full Node.js access in the insecure Electron renderer. Active exploitation is not confirmed, but a public proof-of-concept is available.
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Same weakness CWE-79 – Cross-site Scripting (XSS)
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External POC / Exploit Code
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