Skip to content
Heist/ feed
Back to feed
High

Xerte Online Toolkits Missing Authentication via connector.php

Type: advisorySources: OSV

Xerte Online Toolkits versions 3.15 and earlier contain a missing authentication vulnerability in the elFinder connector endpoint at /editor/elfinder/php/connector.php where an HTTP redirect to unauthenticated callers does not call exit() or die(), allowing PHP execution to continue and process the full request server-side. Unauthenticated attackers can perform file operations on project media directories including creating directories, uploading files, renaming files, duplicating files, overwriting files, and deleting files, which can be chained with path traversal and extension blocklist vulnerabilities to achieve remote code execution and arbitrary file read.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-34413
Confirmed fixed CVEs
Not specified
Updated in this feed
4 Nov 2026, 15:48 UTC · Revision 1

Source evidence

Xerte Online Toolkits Missing Authentication via connector.php

core-osv · Original source

Published 22 Apr 2026, 18:33 UTC

Xerte Online Toolkits versions 3.15 and earlier contain a missing authentication vulnerability in the elFinder connector endpoint at /editor/elfinder/php/connector.php where an HTTP redirect to unauthenticated callers does not call exit() or die(), allowing PHP execution to continue and process the full request server-side. Unauthenticated attackers can perform file operations on project media directories including creating directories, uploading files, renaming files, duplicating files, overwriting files, and deleting files, which can be chained with path traversal and extension blocklist vulnerabilities to achieve remote code execution and arbitrary file read.

osv:CVE-2026-34413
Complete source record
{
  "id": "839d616b6ce6ff04e04d97f1e892e49e9b67023ce9dd98a0bb58edab1851cab3",
  "url": "https://osv.dev/vulnerability/CVE-2026-34413",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Xerte Online Toolkits Missing Authentication via connector.php",
    "summary": "Xerte Online Toolkits versions 3.15 and earlier contain a missing authentication vulnerability in the elFinder connector endpoint at /editor/elfinder/php/connector.php where an HTTP redirect to unauthenticated callers does not call exit() or die(), allowing PHP execution to continue and process the full request server-side. Unauthenticated attackers can perform file operations on project media directories including creating directories, uploading files, renaming files, duplicating files, overwriting files, and deleting files, which can be chained with path traversal and extension blocklist vulnerabilities to achieve remote code execution and arbitrary file read.",
    "evidence": "osv:CVE-2026-34413",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-34413",
      "aliases": [
        "CVE-2026-34413"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/thexerteproject/xerteonlinetoolkits",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "02661be88cc369325ea01b508086bde7fbfec805"
                },
                {
                  "fixed": "17e4f945fe6a3400fa88c01eda18c1075ee4a212"
                },
                {
                  "fixed": "507d55c5e91bf9310b5b1c7fad8aebfef902ad23"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "3.15"
                      }
                    ],
                    "source": "DESCRIPTION"
                  },
                  {
                    "range": [
                      {
                        "fixed": "02661be88cc369325ea01b508086bde7fbfec805"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "17e4f945fe6a3400fa88c01eda18c1075ee4a212"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "507d55c5e91bf9310b5b1c7fad8aebfef902ad23"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "AI-v3.15.4",
            "AI-v3.15.3",
            "AI-v3.15.2",
            "AI-v3.15.1",
            "AI-v3.15",
            "v3.14.5",
            "v3.14.4",
            "v3.14.3",
            "v3.13.9",
            "v3.14.2",
            "v3.14.1",
            "v3.13.8",
            "v3.14.0",
            "v3.13.7",
            "v3.13.6",
            "v3.13.5",
            "v3.13.4",
            "v3.13.3",
            "v3.13.2",
            "v.3.13.1",
            "v3.13",
            "v3.12.33",
            "v3.12.32",
            "v3.12.31",
            "v3.12.30",
            "v3.12.29",
            "v3.12.28",
            "v.3.12.27",
            "v3.12.26",
            "v3.12.25",
            "v3.12.24",
            "v3.12.23",
            "v3.12.22",
            "v3.12.21",
            "v3.12.20",
            "v3.12.19",
            "v3.12.18",
            "v3.12.17",
            "v3.12.16",
            "v3.12.15",
            "v3.12.14",
            "v3.12.13",
            "v3.12.12",
            "v3.12.11",
            "v3.12.10",
            "v3.12.9",
            "v3.12.8",
            "v3.12.7",
            "v3.12.6",
            "v.3.12.6",
            "v3.12.5",
            "v3.12.4",
            "v3.12.3",
            "v3.12.2",
            "v3.12.1",
            "v3.12",
            "v3.11.21",
            "v3.11.20",
            "v.3.11.19",
            "v3.11.18",
            "v3.11.17",
            "v3.11.16",
            "v3.11.15",
            "v3.11.14",
            "v3.11.13",
            "v3.11.12",
            "v3.11.11",
            "v3.11.10",
            "v3.11.9",
            "v3.11.8",
            "v3.11.7",
            "v3.11.6",
            "v3.11.5",
            "v3.11.4",
            "v3.11.3",
            "v3.11.2",
            "v3.11.1",
            "v3.11",
            "v3.10.5",
            "v3.10.4",
            "v3.10.3",
            "v3.10.2",
            "v3.10.1",
            "v3.10",
            "v3.9",
            "v3.8.5",
            "v3.8.4",
            "v3.8.3",
            "v3.8.2",
            "v3.8.1",
            "v3.8",
            "X-v3.7.14",
            "X-v3.7.13",
            "X-v3.7.12",
            "X-v3.7.11",
            "X-v3.7.10",
            "X-v3.7.9",
            "X-v3.7.8",
            "X-v3.7.7",
            "X-v3.7.6",
            "X-v3.7.5",
            "X-v3.7.4",
            "X-v3.7.3",
            "X-v3.7.2",
            "X-v3.7.1",
            "vX",
            "v3.6.4",
            "v3.6.3",
            "v3.6.2",
            "v3.6.1",
            "v3.6",
            "v3.5.5",
            "v3.5.4",
            "v3.5.3",
            "v3.5.2",
            "v3.5.1",
            "v3.5",
            "v3.4.2",
            "v3.4.1",
            "v3.4",
            "v3.1",
            "v3.0-beta",
            "v2.1",
            "v2.1-beta",
            "2.1-beta",
            "git",
            "v2.0",
            "2.0",
            "initial"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-34413.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:37.202198149Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34413.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-34413",
        "https://www.vulncheck.com/advisories/xerte-online-toolkits-missing-authentication-via-connector-php",
        "https://xerte.org.uk/xertetoolkits_3.15_ChangeLog.html",
        "https://github.com/thexerteproject/xerteonlinetoolkits/issues/1527",
        "https://xerte.org.uk/index.php/en/downloads-1/category/3-xerte-online-toolkits",
        "https://github.com/thexerteproject/xerteonlinetoolkits/commit/02661be88cc369325ea01b508086bde7fbfec805",
        "https://github.com/thexerteproject/xerteonlinetoolkits/commit/17e4f945fe6a3400fa88c01eda18c1075ee4a212",
        "https://github.com/thexerteproject/xerteonlinetoolkits/commit/507d55c5e91bf9310b5b1c7fad8aebfef902ad23",
        "https://github.com/thexerteproject/xerteonlinetoolkits",
        "https://github.com/bootstrapbool/xerteonlinetoolkits-rce"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-497"
        ],
        "cna_assigner": "VulnCheck",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "last_affected": "3.15.0"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandardRange"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34413.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-34413",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 504261,
  "published_at": "2026-04-22T18:33:44.084+00:00"
}