CVE-2026-1306 (GCVE-0-2026-1306)

Vulnerability from cvelistv5 – Published: 2026-02-14 06:42 – Updated: 2026-04-08 17:26
VLAI
Title
midi-Synth <= 1.1.0 - Unauthenticated Arbitrary File Upload via 'export' AJAX Action
Summary
The midi-Synth plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type and file extension validation in the 'export' AJAX action in all versions up to, and including, 1.1.0. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible granted the attacker can obtain a valid nonce. The nonce is exposed in frontend JavaScript making it trivially accessible to unauthenticated attackers.
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-18 20:33 UTC
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
Wordfence CNA under the mitre root
CNA scorecard C 65/100 over 2480 records in the last 180 days details
Impacted products
Vendor Product Version CPE status
adminkov midi-Synth Affected: 0 , ≤ 1.1.0 (semver)
guessed Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-1306",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-02-18T20:33:49.103665Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-02-18T20:33:59.039Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "midi-Synth",
          "vendor": "adminkov",
          "versions": [
            {
              "lessThanOrEqual": "1.1.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Athiwat Tiprasaharn"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Itthidej Aramsri"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Powpy"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Waris Damkham"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Peerapat Samatathanyakorn"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The midi-Synth plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type and file extension validation in the \u0027export\u0027 AJAX action in all versions up to, and including, 1.1.0. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site\u0027s server which may make remote code execution possible granted the attacker can obtain a valid nonce. The nonce is exposed in frontend JavaScript making it trivially accessible to unauthenticated attackers."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-434",
              "description": "CWE-434 Unrestricted Upload of File with Dangerous Type",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-08T17:26:11.751Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/d5b695d7-c690-4748-b218-5699d1aa63bf?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/midi-synth/tags/1.1.0/midiSynthConvert.php#L421"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/midi-synth/tags/1.1.0/midiSynthConvert.php#L492"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/midi-synth/tags/1.1.0/midiSynth.php#L121"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/midi-synth/tags/1.1.0/midiSynth.php#L110"
        },
        {
          "url": "https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026old=3460788%40midi-synth\u0026new=3460788%40midi-synth\u0026sfp_email=\u0026sfph_mail="
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-02-20T21:14:59.000Z",
          "value": "Vendor Notified"
        },
        {
          "lang": "en",
          "time": "2026-02-13T18:33:05.000Z",
          "value": "Disclosed"
        }
      ],
      "title": "midi-Synth \u003c= 1.1.0 - Unauthenticated Arbitrary File Upload via \u0027export\u0027 AJAX Action"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
    "cveId": "CVE-2026-1306",
    "datePublished": "2026-02-14T06:42:34.875Z",
    "dateReserved": "2026-01-21T19:20:30.948Z",
    "dateUpdated": "2026-04-08T17:26:11.751Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-1306",
      "date": "2026-11-08",
      "epss": "0.04827",
      "percentile": "0.92043"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "midi-Synth",
                "vendor": "adminkov",
                "versions": [
                  {
                    "lessThanOrEqual": "1.1.0",
                    "status": "affected",
                    "version": "0",
                    "versionType": "semver"
                  }
                ]
              }
            ],
            "source": "security@wordfence.com"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "The midi-Synth plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type and file extension validation in the \u0027export\u0027 AJAX action in all versions up to, and including, 1.1.0. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site\u0027s server which may make remote code execution possible granted the attacker can obtain a valid nonce. The nonce is exposed in frontend JavaScript making it trivially accessible to unauthenticated attackers."
          },
          {
            "lang": "es",
            "value": "El plugin midi-Synth para WordPress es vulnerable a la carga arbitraria de archivos debido a la falta de validaci\u00f3n del tipo de archivo y de la extensi\u00f3n de archivo en la acci\u00f3n AJAX \u0027export\u0027 en todas las versiones hasta la 1.1.0, inclusive. Esto permite a los atacantes no autenticados cargar archivos arbitrarios en el servidor del sitio afectado, lo que podr\u00eda hacer posible la ejecuci\u00f3n remota de c\u00f3digo siempre que el atacante pueda obtener un nonce v\u00e1lido. El nonce est\u00e1 expuesto en el JavaScript de frontend, lo que lo hace trivialmente accesible para los atacantes no autenticados."
          }
        ],
        "id": "CVE-2026-1306",
        "lastModified": "2026-06-17T10:15:29.303",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 9.8,
                "baseSeverity": "CRITICAL",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 5.9,
              "source": "security@wordfence.com",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2026-1306",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "yes"
                  },
                  {
                    "technicalImpact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-02-18T20:33:49.103665Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2026-02-14T07:16:10.150",
        "references": [
          {
            "source": "security@wordfence.com",
            "url": "https://plugins.trac.wordpress.org/browser/midi-synth/tags/1.1.0/midiSynth.php#L110"
          },
          {
            "source": "security@wordfence.com",
            "url": "https://plugins.trac.wordpress.org/browser/midi-synth/tags/1.1.0/midiSynth.php#L121"
          },
          {
            "source": "security@wordfence.com",
            "url": "https://plugins.trac.wordpress.org/browser/midi-synth/tags/1.1.0/midiSynthConvert.php#L421"
          },
          {
            "source": "security@wordfence.com",
            "url": "https://plugins.trac.wordpress.org/browser/midi-synth/tags/1.1.0/midiSynthConvert.php#L492"
          },
          {
            "source": "security@wordfence.com",
            "url": "https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026old=3460788%40midi-synth\u0026new=3460788%40midi-synth\u0026sfp_email=\u0026sfph_mail="
          },
          {
            "source": "security@wordfence.com",
            "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/d5b695d7-c690-4748-b218-5699d1aa63bf?source=cve"
          }
        ],
        "sourceIdentifier": "security@wordfence.com",
        "vulnStatus": "Deferred",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-434"
              }
            ],
            "source": "security@wordfence.com",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "current_release_date": "2026-04-08T19:34:02+00:00",
      "cve": "CVE-2026-1306",
      "id": "CVE-2026-1306",
      "initial_release_date": "2026-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "midi-Synth \u003c= 1.1.0 - Unauthenticated Arbitrary File Upload via \u0027export\u0027 AJAX Action",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-1306.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-1306",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "yes"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-02-18T20:33:49.103665Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-02-18T20:33:55.324Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "midi-Synth",
              "vendor": "adminkov",
              "versions": [
                {
                  "lessThanOrEqual": "1.1.0",
                  "status": "affected",
                  "version": "0",
                  "versionType": "semver"
                }
              ]
            }
          ],
          "credits": [
            {
              "lang": "en",
              "type": "finder",
              "value": "Athiwat Tiprasaharn"
            },
            {
              "lang": "en",
              "type": "finder",
              "value": "Itthidej Aramsri"
            },
            {
              "lang": "en",
              "type": "finder",
              "value": "Powpy"
            },
            {
              "lang": "en",
              "type": "finder",
              "value": "Waris Damkham"
            },
            {
              "lang": "en",
              "type": "finder",
              "value": "Peerapat Samatathanyakorn"
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "The midi-Synth plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type and file extension validation in the \u0027export\u0027 AJAX action in all versions up to, and including, 1.1.0. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site\u0027s server which may make remote code execution possible granted the attacker can obtain a valid nonce. The nonce is exposed in frontend JavaScript making it trivially accessible to unauthenticated attackers."
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "baseScore": 9.8,
                "baseSeverity": "CRITICAL",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              }
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-434",
                  "description": "CWE-434 Unrestricted Upload of File with Dangerous Type",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-04-08T17:26:11.751Z",
            "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
            "shortName": "Wordfence"
          },
          "references": [
            {
              "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/d5b695d7-c690-4748-b218-5699d1aa63bf?source=cve"
            },
            {
              "url": "https://plugins.trac.wordpress.org/browser/midi-synth/tags/1.1.0/midiSynthConvert.php#L421"
            },
            {
              "url": "https://plugins.trac.wordpress.org/browser/midi-synth/tags/1.1.0/midiSynthConvert.php#L492"
            },
            {
              "url": "https://plugins.trac.wordpress.org/browser/midi-synth/tags/1.1.0/midiSynth.php#L121"
            },
            {
              "url": "https://plugins.trac.wordpress.org/browser/midi-synth/tags/1.1.0/midiSynth.php#L110"
            },
            {
              "url": "https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026old=3460788%40midi-synth\u0026new=3460788%40midi-synth\u0026sfp_email=\u0026sfph_mail="
            }
          ],
          "timeline": [
            {
              "lang": "en",
              "time": "2026-02-20T21:14:59.000Z",
              "value": "Vendor Notified"
            },
            {
              "lang": "en",
              "time": "2026-02-13T18:33:05.000Z",
              "value": "Disclosed"
            }
          ],
          "title": "midi-Synth \u003c= 1.1.0 - Unauthenticated Arbitrary File Upload via \u0027export\u0027 AJAX Action"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "assignerShortName": "Wordfence",
        "cveId": "CVE-2026-1306",
        "datePublished": "2026-02-14T06:42:34.875Z",
        "dateReserved": "2026-01-21T19:20:30.948Z",
        "dateUpdated": "2026-04-08T17:26:11.751Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Events included in the timeline

Loading timeline…


    Loading…

    Loading…

    Loading…

    Related by attack behaviour

    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.