GHSA-6GGM-PWR9-R5H2

Vulnerability from github – Published: 2026-03-16 16:39 – Updated: 2026-03-16 16:39
VLAI?
Summary
XSS in @leanprover/unicode-input-component
Details

Impact

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.

Patches

The issue has been resolved in 0.2.0.

Workarounds

Replace the unicode input component with a basic HTML text field.

Severity ?
0.0 (None)
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
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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "@leanprover/unicode-input-component"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.2.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-32732"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-80"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-16T16:39:55Z",
    "nvd_published_at": "2026-03-16T14:19:43Z",
    "severity": "LOW"
  },
  "details": "### 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.",
  "id": "GHSA-6ggm-pwr9-r5h2",
  "modified": "2026-03-16T16:39:55Z",
  "published": "2026-03-16T16:39:55Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/leanprover/vscode-lean4/security/advisories/GHSA-6ggm-pwr9-r5h2"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-32732"
    },
    {
      "type": "WEB",
      "url": "https://github.com/leanprover/vscode-lean4/pull/735"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/leanprover/vscode-lean4"
    },
    {
      "type": "WEB",
      "url": "https://leanprover.zulipchat.com/#narrow/channel/113488-general/topic/weird.20behavior.20in.20loogle.20searchbar/near/578502003"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "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",
      "type": "CVSS_V4"
    }
  ],
  "summary": "XSS in @leanprover/unicode-input-component"
}


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Sightings

Author Source Type Date

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.