High

UsersWP <= 1.2.65 - Authenticated (Subscriber+) Arbitrary File Deletion via File Upload Field

Type: advisorySources: OSV

The UsersWP plugin for WordPress is vulnerable to Arbitrary File Deletion in versions up to, and including, 1.2.65. This is due to insufficient validation of file-field values in the UsersWP_Validation::validate_fields() function (which falls through to sanitize_text_field() for fields of type 'file', leaving directory-traversal sequences intact) combined with the UsersWP_Forms::upload_file_remove() AJAX handler building the deletion target from the uploads basedir concatenated with the attacker-controlled metadata value without any realpath canonicalization or uploads-directory boundary check before calling unlink(). This makes it possible for authenticated attackers, with Subscriber-level access and above, to delete arbitrary files on the affected site's server, including wp-config.

Products: Not specified
Affected versions: Not specified
Fixed versions: Not specified
CVEs: CVE-2026-13492
Confirmed fixed CVEs: Not specified
Updated in this feed: 8 Nov 2026, 01:14 UTC · Revision 1

Source evidence

UsersWP <= 1.2.65 - Authenticated (Subscriber+) Arbitrary File Deletion via File Upload Field

core-osv · Original source

Published 9 Jul 2026, 18:33 UTC

osv:CVE-2026-13492

Complete source record

{
  "id": "86d0ff11847657a9c6899d7f64f87be7afcad8c65c7125646b500e4fe7108dce",
  "url": "https://osv.dev/vulnerability/CVE-2026-13492",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "UsersWP <= 1.2.65 - Authenticated (Subscriber+) Arbitrary File Deletion via File Upload Field",
    "summary": "The UsersWP plugin for WordPress is vulnerable to Arbitrary File Deletion in versions up to, and including, 1.2.65. This is due to insufficient validation of file-field values in the UsersWP_Validation::validate_fields() function (which falls through to sanitize_text_field() for fields of type 'file', leaving directory-traversal sequences intact) combined with the UsersWP_Forms::upload_file_remove() AJAX handler building the deletion target from the uploads basedir concatenated with the attacker-controlled metadata value without any realpath canonicalization or uploads-directory boundary check before calling unlink(). This makes it possible for authenticated attackers, with Subscriber-level access and above, to delete arbitrary files on the affected site's server, including wp-config.",
    "evidence": "osv:CVE-2026-13492",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-13492",
      "aliases": [
        "CVE-2026-13492"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/ayecode/userswp",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "ddb17ad30ff3384cda85c5f372db30b03bd45ac8"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.2.65"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "fixed": "ddb17ad30ff3384cda85c5f372db30b03bd45ac8"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.2.3.11",
            "1.2.3.10",
            "1.2.3.9",
            "1.2.3.8",
            "1.2.3.7",
            "1.2.3.6",
            "1.2.3.5",
            "1.2.3.4",
            "1.2.3.3",
            "1.2.3.2",
            "1.2.3.1",
            "1.2.3",
            "1.2.2.37",
            "1.2.2.36",
            "1.2.2.35",
            "1.2.2.34",
            "1.2.2.33",
            "1.2.2.32",
            "1.2.2.31",
            "1.2.2.30",
            "1.2.2.29",
            "1.2.2.28",
            "1.2.2.27",
            "1.2.2.26",
            "1.2.2.25",
            "1.2.2.24",
            "1.2.2.23",
            "1.2.2.22",
            "1.2.2.21",
            "1.2.2.20",
            "1.2.2.19",
            "1.2.2.18",
            "1.2.2.17",
            "1.2.2.16",
            "1.2.2.15",
            "1.2.2.14",
            "1.2.2.13",
            "1.2.2.12",
            "1.2.2.11",
            "1.2.2.10",
            "1.2.2.9",
            "1.2.2.8",
            "1.2.2.7",
            "1.2.2.6",
            "1.2.2.5",
            "1.2.2.4",
            "1.2.2.3",
            "1.2.2.2",
            "1.2.2.1",
            "1.2.2",
            "1.2.1.9",
            "1.2.1.8",
            "1.2.1.7",
            "1.2.1.6",
            "1.2.1.5",
            "1.2.1.4",
            "1.2.1.3",
            "1.2.1.2",
            "1.2.1.1",
            "1.2.1",
            "1.2.0.12",
            "1.2.0.11",
            "1.2.0.10",
            "1.2.0.9",
            "1.2.0.8",
            "1.2.0.7",
            "1.2.0.6",
            "1.2.0.5",
            "1.2.0.4",
            "1.2.0.3",
            "1.2.0.2",
            "1.2.0.1",
            "1.2.0",
            "1.1.3",
            "1.1.2",
            "1.1.1",
            "1.1.0",
            "1.0.24",
            "1.0.23",
            "1.0.22",
            "1.0.21",
            "1.0.20",
            "1.0.19",
            "1.0.18",
            "1.0.17",
            "1.0.16",
            "1.0.15",
            "1.0.14",
            "1.0.13",
            "1.0.12",
            "1.0.10",
            "1.0.11",
            "1.0.9",
            "1.0.8",
            "1.0.7",
            "1.0.6",
            "1.0.5",
            "1.0.4",
            "1.0.3",
            "1.0.2",
            "1.0.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-13492.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:52.600175016Z",
      "provider": "osv",
      "references": [
        "https://plugins.trac.wordpress.org/browser/userswp/tags/1.2.65/includes/class-forms.php#L1059",
        "https://plugins.trac.wordpress.org/browser/userswp/tags/1.2.65/includes/class-forms.php#L1973",
        "https://plugins.trac.wordpress.org/browser/userswp/tags/1.2.65/includes/class-forms.php#L2320",
        "https://plugins.trac.wordpress.org/browser/userswp/tags/1.2.65/includes/class-forms.php#L2323",
        "https://plugins.trac.wordpress.org/browser/userswp/tags/1.2.65/includes/class-validation.php#L190",
        "https://plugins.trac.wordpress.org/changeset/3590340/userswp",
        "https://www.wordfence.com/threat-intel/vulnerabilities/id/b6cf6390-480f-44e2-ae36-67e3398add33?source=cve",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/13xxx/CVE-2026-13492.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-13492",
        "https://github.com/AyeCode/userswp/commit/ddb17ad30ff3384cda85c5f372db30b03bd45ac8"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-22"
        ],
        "cna_assigner": "Wordfence",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/13xxx/CVE-2026-13492.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-13492",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 521248,
  "published_at": "2026-07-09T18:33:16.055+00:00"
}