GHSA-3WXG-W96J-8HQ9

Vulnerability from github – Published: 2023-05-26 13:54 – Updated: 2023-05-26 21:50
VLAI?
Summary
CraftCMS stored XSS in Quick Post widget error message
Details

Summary

The platform does not filter input and encode output in Quick Post validation error message, which can deliver an XSS payload.

Details

Old CVE fixed the XSS in label HTML but didn’t fix it when clicking save.

PoC

  1. Login at admin
  2. Go to setting
  3. Create a Section
  4. On Entry page, click Edit label
  5. Inject the XSS payload into the label and save
  6. On the admin dashboard choose new widget -> Quick Post

  7. In Quick Post, click save with blank slug; The XSS will be executed

    "errors":{"title":["alert('nono') cannot be blank."],"slug":["Slug cannot be blank."]

Fixed in https://github.com/craftcms/cms/commit/9d0cd0bda7c8a830a3373f8c0f06943e519ac888

Severity ?
3.7 (Low)
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:L
Show details on source website
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "craftcms/cms"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.0.0-RC1"
            },
            {
              "fixed": "4.4.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 3.8.5"
      },
      "package": {
        "ecosystem": "Packagist",
        "name": "craftcms/cms"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.0.0"
            },
            {
              "fixed": "3.8.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-33194"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79",
      "CWE-80"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-05-26T13:54:11Z",
    "nvd_published_at": "2023-05-26T21:15:20Z",
    "severity": "LOW"
  },
  "details": "### Summary\nThe platform does not filter input and encode output in Quick Post validation error message, which can deliver an XSS payload.\n\n### Details\nOld CVE fixed the XSS in label HTML but didn\u2019t fix it when clicking save.\n\n### PoC\n1. Login at admin\n2. Go to setting\n3. Create a Section\n4. On Entry page, click Edit label\n5. Inject the XSS payload into the label and save\n6. On the admin dashboard choose new widget -\u003e Quick Post\n7. In Quick Post, click save with blank slug; The XSS will be executed\n\n    \"errors\":{\"title\":[\"\u003cscript\u003ealert(\u0027nono\u0027)\u003c/script\u003e cannot be blank.\"],\"slug\":[\"Slug cannot be blank.\"]\n\nFixed in https://github.com/craftcms/cms/commit/9d0cd0bda7c8a830a3373f8c0f06943e519ac888\n",
  "id": "GHSA-3wxg-w96j-8hq9",
  "modified": "2023-05-26T21:50:40Z",
  "published": "2023-05-26T13:54:11Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/craftcms/cms/security/advisories/GHSA-3wxg-w96j-8hq9"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-33194"
    },
    {
      "type": "WEB",
      "url": "https://github.com/craftcms/cms/commit/9d0cd0bda7c8a830a3373f8c0f06943e519ac888"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/craftcms/cms"
    },
    {
      "type": "WEB",
      "url": "https://github.com/craftcms/cms/releases/tag/4.4.6"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "CraftCMS stored XSS in Quick Post widget error message"
}


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