Showing 2 vulnerabilities on this page for Eclipse Open VSX

Signals CISA KEV Ransomware Nuclei
Eclipse Foundation vulnerability results
VulnerabilityTitle and contextCVSSEPSSPoCsSignalsSTIX action

Generated title:Eclipse Open VSX Registry Stored Cross-Site Scripting

In Open VSX Registry before 1.0.2, the /vscode/unpkg/ endpoint serves user-supplied HTML files with Content-Type: text/html and without a Content-Security-Policy or Content-Disposition: attachment response header. An unauthenticated attacker can register a publisher account, upload a VSIX containing a crafted HTML payload, and induce an authenticated user to visit the resulting URL. The browser renders the file inline in the open-vsx.org origin context, enabling session token exfiltration, persi

CWE-79Jul 1, 2026
CVSS4.1v3.1EPSS0.212%PoCs0SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templatesSTIX

Generated title:Eclipse Open VSX Registry Stored Cross-Site Scripting via SVG Icon Upload

Open VSX Registry does not sanitize SVG files uploaded as extension icons prior to storage, and serves them with Content-Type: image/svg+xml without security headers such as Content-Security-Policy or Content-Disposition: attachment. This allows an attacker to publish an extension with a malicious SVG icon and achieve stored cross-site scripting (XSS) when a user navigates directly to the icon URL. On deployments using local storage, script execution occurs within the Open VSX application or

CWE-79Jun 23, 2026
CVSS4.1v3.1EPSS0.224%PoCs0SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templatesSTIX