Vulnerabilities in pkg:maven/gg.jte/jte

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-vh22-6c6h-rm8q",
  "modified" : "2025-01-13T21:49:25Z",
  "published" : "2025-01-13T16:57:59Z",
  "aliases" : [ "CVE-2025-23026" ],
  "summary" : "jte's HTML templates containing Javascript template strings are subject to XSS",
  "details" : "### Summary\nJte HTML templates with `script` tags or script attributes that include a Javascript template string (backticks) are subject to XSS.\n\n### Details\nThe `javaScriptBlock` and `javaScriptAttribute` methods in the `Escape` class ([source](https://github.com/casid/jte/blob/main/jte-runtime/src/main/java/gg/jte/html/escape/Escape.java#L43-L83)) do not escape backticks, which are used for Javascript [template strings](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Template_literals#description). Dollar signs in template strings should also be escaped as well to prevent undesired interpolation.\n\n### PoC\n1. Use the [Jte Gradle Plugin](https://jte.gg/gradle-plugin/) with the following code in `src/jte/xss.jte`:\n    ```html\n    @param String someMessage\n    <!DOCTYPE html>\n    <html lang=\"en\">\n    <head>\n        <title>XSS Test</title>\n        <script>window.someVariable = `${someMessage}`;</script>\n    </head>\n    <body>\n    <h1>XSS Test</h1>\n    </body>\n    </html>\n    ```\n2. Use the following Java code to demonstrate the XSS vulnerability:\n    ```java\n    final StringOutput output = new StringOutput();\n    JtexssGenerated.render(new OwaspHtmlTemplateOutput(output), null, \"` + alert(`xss`) + `\");\n    renderHtml(output);\n    ```\n\n### Impact\nHTML templates rendered by Jte's `OwaspHtmlTemplateOutput` in versions less than or equal to `3.1.15` with `script` tags or script attributes that contain Javascript template strings (backticks) are vulnerable.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "gg.jte:jte"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "3.1.16"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 3.1.15"
    }
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "gg.jte:jte-runtime"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "3.1.16"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 3.1.15"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/casid/jte/security/advisories/GHSA-vh22-6c6h-rm8q"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-23026"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/casid/jte/commit/a6fb00d53c7b8dbb86de933215dbe1b9191a57f1"
  }, {
    "type" : "WEB",
    "url" : "https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Template_literals#description"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/casid/jte"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/casid/jte/blob/main/jte-runtime/src/main/java/gg/jte/html/escape/Escape.java#L43-L83"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-150", "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-01-13T16:57:59Z",
    "nvd_published_at" : "2025-01-13T20:15:30Z"
  }
}