Vulnerability-Lookup

GHSA-67J3-R63P-59HF

Vulnerability from github – Published: 2026-04-22 21:32 – Updated: 2026-04-24 21:31

Details

Xerte Online Toolkits versions 3.15 and earlier contain an incomplete input validation vulnerability in the elFinder connector endpoint that fails to block PHP-executable extensions .php4 due to an incorrect regex pattern. Unauthenticated attackers can exploit this flaw combined with authentication bypass and path traversal vulnerabilities to upload malicious PHP code, rename it with a .php4 extension, and execute arbitrary operating system commands on the server.

Severity

9.8 (Critical)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

9.3 (Critical)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-34415"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-184"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-22T19:17:04Z",
    "severity": "CRITICAL"
  },
  "details": "Xerte Online Toolkits versions 3.15 and earlier contain an incomplete input validation vulnerability in the elFinder connector endpoint that fails to block PHP-executable extensions .php4 due to an incorrect regex pattern. Unauthenticated attackers can exploit this flaw combined with authentication bypass and path traversal vulnerabilities to upload malicious PHP code, rename it with a .php4 extension, and execute arbitrary operating system commands on the server.",
  "id": "GHSA-67j3-r63p-59hf",
  "modified": "2026-04-24T21:31:59Z",
  "published": "2026-04-22T21:32:11Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34415"
    },
    {
      "type": "WEB",
      "url": "https://github.com/thexerteproject/xerteonlinetoolkits/issues/1527"
    },
    {
      "type": "WEB",
      "url": "https://github.com/thexerteproject/xerteonlinetoolkits/commit/02661be88cc369325ea01b508086bde7fbfec805"
    },
    {
      "type": "WEB",
      "url": "https://github.com/thexerteproject/xerteonlinetoolkits/commit/17e4f945fe6a3400fa88c01eda18c1075ee4a212"
    },
    {
      "type": "WEB",
      "url": "https://github.com/thexerteproject/xerteonlinetoolkits/commit/507d55c5e91bf9310b5b1c7fad8aebfef902ad23"
    },
    {
      "type": "WEB",
      "url": "https://github.com/bootstrapbool/xerteonlinetoolkits-rce"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/xerte-online-toolkits-file-upload-rce-via-elfinder-connector"
    },
    {
      "type": "WEB",
      "url": "https://xerte.org.uk/index.php/en/downloads-1/category/3-xerte-online-toolkits"
    },
    {
      "type": "WEB",
      "url": "https://xerte.org.uk/xertetoolkits_3.15_ChangeLog.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-34415 (GCVE-0-2026-34415)

Vulnerability from cvelistv5 – Published: 2026-04-22 18:33 – Updated: 2026-05-25 23:42

Title

Xerte Online Toolkits File Upload RCE via elfinder Connector

Summary

Severity

9.3 (Critical)


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

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-184 - Incomplete List of Disallowed Inputs

Assigner

VulnCheck

References

8 references

URL	Tags
https://github.com/bootstrapbool/xerteonlinetoolk…	technical-descriptionexploit
https://xerte.org.uk/xertetoolkits_3.15_ChangeLog.html	release-notes
https://xerte.org.uk/index.php/en/downloads-1/cat…	productpermissions-required
https://github.com/thexerteproject/xerteonlinetoo…	issue-tracking
https://github.com/thexerteproject/xerteonlinetoo…	patch
https://github.com/thexerteproject/xerteonlinetoo…	patch
https://github.com/thexerteproject/xerteonlinetoo…	patch
https://www.vulncheck.com/advisories/xerte-online…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
thexerteproject	xerteonlinetoolkits	Affected: 0 , ≤ 3.15.0 (semver)

Credits

bootstrapbool

Show details on NVD website

JSON

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                "id": "CVE-2026-34415",
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                  },
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                  },
                  {
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                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-22T19:29:01.840102Z",
                "version": "2.0.3"
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            }
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-67J3-R63P-59HF

CVE-2026-34415 (GCVE-0-2026-34415)

Tags

Sightings

Nomenclature