Vulnerability-Lookup

CVE-2026-1251 (GCVE-0-2026-1251)

Vulnerability from cvelistv5 – Published: 2026-01-31 06:39 – Updated: 2026-04-08 17:05

Title

SupportCandy – Helpdesk & Customer Support Ticket System <= 3.4.4 - Authenticated (Subscriber+) Insecure Direct Object Reference

Summary

The SupportCandy – Helpdesk & Customer Support Ticket System plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 3.4.4 via the 'add_reply' function due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with subscriber-level access and above, to steal file attachments uploaded by other users by specifying arbitrary attachment IDs in the 'description_attachments' parameter, re-associating those files to their own tickets and removing access from the original owners.

Severity

5.4 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-02-02 17:55 UTC

CWE

CWE-639 - Authorization Bypass Through User-Controlled Key

Assigner

Wordfence mitre root

References

3 references

URL	Tags
https://www.wordfence.com/threat-intel/vulnerabil…
https://plugins.trac.wordpress.org/browser/suppor…
https://plugins.trac.wordpress.org/changeset/3448376/

Impacted products

1 product

Vendor	Product	Version	CPE status
psmplugins	SupportCandy – Helpdesk & Customer Support Ticket System	Affected: 0 , ≤ 3.4.4 (semver)	guessed

Credits

Theklis Stefani

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-1251",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-02-02T17:55:47.971261Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-02-02T17:55:57.069Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "SupportCandy \u2013 Helpdesk \u0026 Customer Support Ticket System",
          "vendor": "psmplugins",
          "versions": [
            {
              "lessThanOrEqual": "3.4.4",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Theklis Stefani"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The SupportCandy \u2013 Helpdesk \u0026 Customer Support Ticket System plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 3.4.4 via the \u0027add_reply\u0027 function due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with subscriber-level access and above, to steal file attachments uploaded by other users by specifying arbitrary attachment IDs in the \u0027description_attachments\u0027 parameter, re-associating those files to their own tickets and removing access from the original owners."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 5.4,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-639",
              "description": "CWE-639 Authorization Bypass Through User-Controlled Key",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-08T17:05:35.339Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/89df3005-0967-474f-8a4e-3b23273dd1a2?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/supportcandy/trunk/includes/admin/tickets/class-wpsc-individual-ticket.php#L1603"
        },
        {
          "url": "https://plugins.trac.wordpress.org/changeset/3448376/"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-01-20T19:19:37.000Z",
          "value": "Vendor Notified"
        },
        {
          "lang": "en",
          "time": "2026-01-23T00:00:00.000Z",
          "value": "Disclosed"
        }
      ],
      "title": "SupportCandy \u2013 Helpdesk \u0026 Customer Support Ticket System \u003c= 3.4.4 - Authenticated (Subscriber+) Insecure Direct Object Reference"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
    "cveId": "CVE-2026-1251",
    "datePublished": "2026-01-31T06:39:23.182Z",
    "dateReserved": "2026-01-20T19:04:14.485Z",
    "dateUpdated": "2026-04-08T17:05:35.339Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-1251",
      "date": "2026-09-16",
      "epss": "0.00289",
      "percentile": "0.21498"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-1251\",\"sourceIdentifier\":\"security@wordfence.com\",\"published\":\"2026-01-31T07:16:02.273\",\"lastModified\":\"2026-06-17T10:15:23.950\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The SupportCandy \u2013 Helpdesk \u0026 Customer Support Ticket System plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 3.4.4 via the \u0027add_reply\u0027 function due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with subscriber-level access and above, to steal file attachments uploaded by other users by specifying arbitrary attachment IDs in the \u0027description_attachments\u0027 parameter, re-associating those files to their own tickets and removing access from the original owners.\"},{\"lang\":\"es\",\"value\":\"El plugin SupportCandy \u2013 Helpdesk \u0026amp; Customer Support Ticket System para WordPress es vulnerable a Referencia Directa Insegura a Objeto en todas las versiones hasta la 3.4.4, inclusive, a trav\u00e9s de la funci\u00f3n \u0027add_reply\u0027 debido a la falta de validaci\u00f3n en una clave controlada por el usuario. Esto hace posible que atacantes autenticados, con acceso de nivel de suscriptor y superior, roben archivos adjuntos cargados por otros usuarios al especificar IDs de adjuntos arbitrarios en el par\u00e1metro \u0027description_attachments\u0027, re-asociando esos archivos a sus propios tickets y eliminando el acceso de los propietarios originales.\"}],\"affected\":[{\"source\":\"security@wordfence.com\",\"affectedData\":[{\"vendor\":\"psmplugins\",\"product\":\"SupportCandy \u2013 Helpdesk \u0026 Customer Support Ticket System\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"0\",\"lessThanOrEqual\":\"3.4.4\",\"versionType\":\"semver\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security@wordfence.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N\",\"baseScore\":5.4,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.8,\"impactScore\":2.5}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-02-02T17:55:47.971261Z\",\"id\":\"CVE-2026-1251\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"security@wordfence.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-639\"}]}],\"references\":[{\"url\":\"https://plugins.trac.wordpress.org/browser/supportcandy/trunk/includes/admin/tickets/class-wpsc-individual-ticket.php#L1603\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/changeset/3448376/\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://www.wordfence.com/threat-intel/vulnerabilities/id/89df3005-0967-474f-8a4e-3b23273dd1a2?source=cve\",\"source\":\"security@wordfence.com\"}]}}",
    "redhat_vex": {
      "current_release_date": "2026-03-27T08:12:21+00:00",
      "cve": "CVE-2026-1251",
      "id": "CVE-2026-1251",
      "initial_release_date": "2026-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "SupportCandy \u2013 Helpdesk \u0026 Customer Support Ticket System \u003c= 3.4.4 - Authenticated (Subscriber+) Insecure Direct Object Reference",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-1251.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-1251\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-02-02T17:55:47.971261Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-02-02T17:55:53.658Z\"}}], \"cna\": {\"title\": \"SupportCandy \\u2013 Helpdesk \u0026 Customer Support Ticket System \u003c= 3.4.4 - Authenticated (Subscriber+) Insecure Direct Object Reference\", \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Theklis Stefani\"}], \"metrics\": [{\"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 5.4, \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N\"}}], \"affected\": [{\"vendor\": \"psmplugins\", \"product\": \"SupportCandy \\u2013 Helpdesk \u0026 Customer Support Ticket System\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"3.4.4\"}], \"defaultStatus\": \"unaffected\"}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2026-01-20T19:19:37.000Z\", \"value\": \"Vendor Notified\"}, {\"lang\": \"en\", \"time\": \"2026-01-23T00:00:00.000Z\", \"value\": \"Disclosed\"}], \"references\": [{\"url\": \"https://www.wordfence.com/threat-intel/vulnerabilities/id/89df3005-0967-474f-8a4e-3b23273dd1a2?source=cve\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/supportcandy/trunk/includes/admin/tickets/class-wpsc-individual-ticket.php#L1603\"}, {\"url\": \"https://plugins.trac.wordpress.org/changeset/3448376/\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"The SupportCandy \\u2013 Helpdesk \u0026 Customer Support Ticket System plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 3.4.4 via the \u0027add_reply\u0027 function due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with subscriber-level access and above, to steal file attachments uploaded by other users by specifying arbitrary attachment IDs in the \u0027description_attachments\u0027 parameter, re-associating those files to their own tickets and removing access from the original owners.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-639\", \"description\": \"CWE-639 Authorization Bypass Through User-Controlled Key\"}]}], \"providerMetadata\": {\"orgId\": \"b15e7b5b-3da4-40ae-a43c-f7aa60e62599\", \"shortName\": \"Wordfence\", \"dateUpdated\": \"2026-04-08T17:05:35.339Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-1251\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-04-08T17:05:35.339Z\", \"dateReserved\": \"2026-01-20T19:04:14.485Z\", \"assignerOrgId\": \"b15e7b5b-3da4-40ae-a43c-f7aa60e62599\", \"datePublished\": \"2026-01-31T06:39:23.182Z\", \"assignerShortName\": \"Wordfence\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

FKIE_CVE-2026-1251

Vulnerability from fkie_nvd - Published: 2026-01-31 07:16 - Updated: 2026-06-17 10:15

Severity

5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Summary

References

	URL	Tags
	security@wordfence.com	https://plugins.trac.wordpress.org/browser/supportcandy/trunk/includes/admin/tickets/class-wpsc-individual-ticket.php#L1603
	security@wordfence.com	https://plugins.trac.wordpress.org/changeset/3448376/
	security@wordfence.com	https://www.wordfence.com/threat-intel/vulnerabilities/id/89df3005-0967-474f-8a4e-3b23273dd1a2?source=cve

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "SupportCandy \u2013 Helpdesk \u0026 Customer Support Ticket System",
          "vendor": "psmplugins",
          "versions": [
            {
              "lessThanOrEqual": "3.4.4",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "security@wordfence.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The SupportCandy \u2013 Helpdesk \u0026 Customer Support Ticket System plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 3.4.4 via the \u0027add_reply\u0027 function due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with subscriber-level access and above, to steal file attachments uploaded by other users by specifying arbitrary attachment IDs in the \u0027description_attachments\u0027 parameter, re-associating those files to their own tickets and removing access from the original owners."
    },
    {
      "lang": "es",
      "value": "El plugin SupportCandy \u2013 Helpdesk \u0026amp; Customer Support Ticket System para WordPress es vulnerable a Referencia Directa Insegura a Objeto en todas las versiones hasta la 3.4.4, inclusive, a trav\u00e9s de la funci\u00f3n \u0027add_reply\u0027 debido a la falta de validaci\u00f3n en una clave controlada por el usuario. Esto hace posible que atacantes autenticados, con acceso de nivel de suscriptor y superior, roben archivos adjuntos cargados por otros usuarios al especificar IDs de adjuntos arbitrarios en el par\u00e1metro \u0027description_attachments\u0027, re-asociando esos archivos a sus propios tickets y eliminando el acceso de los propietarios originales."
    }
  ],
  "id": "CVE-2026-1251",
  "lastModified": "2026-06-17T10:15:23.950",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 2.5,
        "source": "security@wordfence.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-1251",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-02-02T17:55:47.971261Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-01-31T07:16:02.273",
  "references": [
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/supportcandy/trunk/includes/admin/tickets/class-wpsc-individual-ticket.php#L1603"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/changeset/3448376/"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/89df3005-0967-474f-8a4e-3b23273dd1a2?source=cve"
    }
  ],
  "sourceIdentifier": "security@wordfence.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-639"
        }
      ],
      "source": "security@wordfence.com",
      "type": "Secondary"
    }
  ]
}

GHSA-H992-GJW5-53J3

Vulnerability from github – Published: 2026-01-31 09:30 – Updated: 2026-01-31 09:30

Details

Severity

5.4 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-1251"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-639"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-01-31T07:16:02Z",
    "severity": "MODERATE"
  },
  "details": "The SupportCandy \u2013 Helpdesk \u0026 Customer Support Ticket System plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 3.4.4 via the \u0027add_reply\u0027 function due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with subscriber-level access and above, to steal file attachments uploaded by other users by specifying arbitrary attachment IDs in the \u0027description_attachments\u0027 parameter, re-associating those files to their own tickets and removing access from the original owners.",
  "id": "GHSA-h992-gjw5-53j3",
  "modified": "2026-01-31T09:30:11Z",
  "published": "2026-01-31T09:30:11Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-1251"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/supportcandy/trunk/includes/admin/tickets/class-wpsc-individual-ticket.php#L1603"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/changeset/3448376"
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/89df3005-0967-474f-8a4e-3b23273dd1a2?source=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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.

Action not permitted

CVE-2026-1251 (GCVE-0-2026-1251)

FKIE_CVE-2026-1251

GHSA-H992-GJW5-53J3

Tags

Sightings

Nomenclature

Related by attack behaviour