CVE-2025-24978: LF Edge eKuiper Cross-Site Scripting Vulnerability

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-g8rh-fjm6-h2h9",
  "modified" : "2026-09-09T17:56:22Z",
  "published" : "2026-09-09T17:56:22Z",
  "aliases" : [ "CVE-2025-24978" ],
  "summary" : "LF Edge eKuiper: Self-XSS in External Service Creation",
  "details" : "### Summary\nA Cross-Site Scripting (XSS) vulnerability in external service creation allows an authenticated attacker to inject HTML/script payloads into external service names, which may execute in a user's browser when rendered by administrative web interfaces.\n\n### Details\nPrior to v2.4.0, external service registration endpoints did not strictly enforce alphanumeric character restrictions on service names. An operator or attacker with API access could register a service using a crafted name containing HTML elements (such as `<iframe src=\"...\">`). If an administrative web UI rendered the unescaped service name, arbitrary script execution could occur in the context of the user's browser session.\n\n### PoC\n1. Create an external service JSON definition with a filename containing an XSS payload, e.g. `<iframe src=\"javascript:alert`1337`\">.json` inside a ZIP archive.\n2. In external service creation, upload the ZIP and provide the matching service name: `<iframe src=\"javascript:alert`1337`\">`.\n3. Upon service registration, the unescaped name executes when rendered in the UI context.\n\n### Impact\nSelf-XSS / Stored XSS leading to potential session token leakage or unauthorized actions in the context of the affected user's browser session.\n\n### Remediation & Patches\n- **Upgrade to eKuiper >= 2.4.0**: Strict alphanumeric identifier validation (`validate.ValidateID`) is now enforced on all external service creation and update endpoints, rejecting invalid characters.\n\n### Workarounds\n- Protect eKuiper management endpoints (`POST /services`) with authentication and network-level firewalls.\n\n### Credits\n- Reported by Alexey Kosmachev, Bi.Zone (@TheMostKnown)",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/lf-edge/ekuiper/v2"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.4.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/lf-edge/ekuiper/security/advisories/GHSA-g8rh-fjm6-h2h9"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/lf-edge/ekuiper"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/lf-edge/ekuiper/releases/tag/v2.4.0"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-09-09T17:56:22Z",
    "nvd_published_at" : null
  }
}