{"id":"CVE-2026-32732","aliases":["EUVD-2026-12181","GHSA-6ggm-pwr9-r5h2"],"status":"published","title":"XSS in @leanprover/unicode-input-component","description":"Lean 4 VS Code Extension is a Visual Studio Code extension for the Lean 4 proof assistant. Projects that use @leanprover/unicode-input-component are vulnerable to an XSS exploit in 0.1.9 of the package and lower. The component re-inserted text in the input element back into the input element as unescaped HTML. The issue has been resolved in 0.2.0.","severity":{"version":"4.0","score":0,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N","level":"none","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00348,"percentile":0.28771,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-80"],"published":"2026-03-13T21:43:22Z","modified":"2026-06-17T10:36:17Z","fixes":[{"ecosystem":"npm","package":"@leanprover/unicode-input-component","fixed_in":["0.2.0"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"@leanprover/unicode-input-component","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.2.0"}]}]},{"source":"osv","ecosystem":"npm","package":"@leanprover/unicode-input-component","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.2.0"}]}]}],"products":[{"vendor":"leanprover","product":"vscode-lean4"}],"references":[{"url":"https://github.com/leanprover/vscode-lean4/security/advisories/GHSA-6ggm-pwr9-r5h2","tags":["x_refsource_CONFIRM","web"]},{"url":"https://github.com/leanprover/vscode-lean4/pull/735","tags":["x_refsource_MISC","web"]},{"url":"https://leanprover.zulipchat.com/#narrow/channel/113488-general/topic/weird.20behavior.20in.20loogle.20searchbar/near/578502003","tags":["x_refsource_MISC","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-32732","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-6ggm-pwr9-r5h2"},{"url":"https://github.com/leanprover/vscode-lean4","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-32732","title":"XSS in @leanprover/unicode-input-component","description":"Lean 4 VS Code Extension is a Visual Studio Code extension for the Lean 4 proof assistant. Projects that use @leanprover/unicode-input-component are vulnerable to an XSS exploit in 0.1.9 of the package and lower. The component re-inserted text in the input element back into the input element as unescaped HTML. The issue has been resolved in 0.2.0.","status":"published","published":"2026-03-13T21:43:22.209Z","modified":"2026-03-16T20:22:43.428Z","cvss":[{"version":"4.0","score":0,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N","level":"none","assessor":"cna"}],"cwes":["CWE-80"],"updated_at":"2026-11-02T14:19:57.100857Z"}],"euvd":[{"id":"EUVD-2026-12181","description":"Lean 4 VS Code Extension is a Visual Studio Code extension for the Lean 4 proof assistant. Projects that use @leanprover/unicode-input-component are vulnerable to an XSS exploit in 0.1.9 of the package and lower. The component re-inserted text in the input element back into the input element as unescaped HTML. The issue has been resolved in 0.2.0.","status":"published","published":"2026-03-13T21:43:22Z","modified":"2026-03-16T20:22:43Z","updated_at":"2026-11-02T19:25:33.692584Z"}],"ghsa":[{"id":"GHSA-6ggm-pwr9-r5h2","title":"XSS in @leanprover/unicode-input-component","description":"### Impact\nProjects that use [@leanprover/unicode-input-component](https://www.npmjs.com/package/@leanprover/unicode-input-component) are vulnerable to an XSS exploit in 0.1.9 of the package and lower. \nThe component re-inserted text in the input element back into the input element as unescaped HTML.\n\n### Patches\nThe issue has been resolved in 0.2.0.\n\n### Workarounds\nReplace the unicode input component with a basic HTML text field.","status":"published","published":"2026-03-16T16:39:55Z","modified":"2026-03-16T16:39:56Z","cvss":[{"version":"4.0","score":0,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N","level":"none"}],"cwes":["CWE-80"],"updated_at":"2026-11-02T14:39:36.642723Z"}],"nvd":[{"id":"CVE-2026-32732","description":"Lean 4 VS Code Extension is a Visual Studio Code extension for the Lean 4 proof assistant. Projects that use @leanprover/unicode-input-component are vulnerable to an XSS exploit in 0.1.9 of the package and lower. The component re-inserted text in the input element back into the input element as unescaped HTML. The issue has been resolved in 0.2.0.","status":"published","published":"2026-03-16T14:19:43.58Z","modified":"2026-06-17T10:36:17.387Z","cvss":[{"version":"4.0","score":0,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N/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","level":"none","assessor":"secondary"}],"cwes":["CWE-80"],"updated_at":"2026-11-02T14:12:09.358914Z"}],"osv":[{"id":"GHSA-6ggm-pwr9-r5h2","title":"XSS in @leanprover/unicode-input-component","description":"### Impact\nProjects that use [@leanprover/unicode-input-component](https://www.npmjs.com/package/@leanprover/unicode-input-component) are vulnerable to an XSS exploit in 0.1.9 of the package and lower. \nThe component re-inserted text in the input element back into the input element as unescaped HTML.\n\n### Patches\nThe issue has been resolved in 0.2.0.\n\n### Workarounds\nReplace the unicode input component with a basic HTML text field.","status":"published","published":"2026-03-16T16:39:55Z","modified":"2026-03-16T16:56:19.366316Z","cvss":[{"version":"4.0","score":0,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N","level":"none"}],"cwes":["CWE-80"],"updated_at":"2026-11-02T15:46:39.618611Z"}]}}