Vulnerability-Lookup

(CVE-2026-58587)

Vulnerability from drupal – Published: 2026-07-01 17:20 – Updated: 2026-07-01 17:20 – Source website

Details

The Canvas AI submodule allows you to upload image files via a custom API to use within the AI web chat.

These file uploads are insufficiently validated before being written to Drupal's temporary directory. In some cases, this may lead to cross-site scripting (XSS).

Credits

AKHIL BABU (akhil babu) www.drupal.org/u/akhil-babu

References

URL

Type

https://www.drupal.org/sa-contrib-2026-065

WEB

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "affected_versions": "\u003c1.4.2 || \u003e=1.5.0 \u003c1.5.2 || \u003e=1.6.0 \u003c1.6.1 || \u003e=1.7.0 \u003c1.7.1"
      },
      "package": {
        "ecosystem": "Packagist:https://packages.drupal.org/8",
        "name": "drupal/canvas"
      },
      "ranges": [
        {
          "database_specific": {
            "constraint": "\u003c1.4.2"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.4.2"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "database_specific": {
            "constraint": "\u003e=1.5.0 \u003c1.5.2"
          },
          "events": [
            {
              "introduced": "1.5.0"
            },
            {
              "fixed": "1.5.2"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "database_specific": {
            "constraint": "\u003e=1.6.0 \u003c1.6.1"
          },
          "events": [
            {
              "introduced": "1.6.0"
            },
            {
              "fixed": "1.6.1"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "database_specific": {
            "constraint": "\u003e=1.7.0 \u003c1.7.1"
          },
          "events": [
            {
              "introduced": "1.7.0"
            },
            {
              "fixed": "1.7.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "severity": []
    }
  ],
  "aliases": [
    "CVE-2026-58587"
  ],
  "credits": [
    {
      "contact": [
        "https://www.drupal.org/u/akhil-babu"
      ],
      "name": "AKHIL BABU (akhil babu)"
    }
  ],
  "details": "The Canvas AI submodule allows you to upload image files via a custom API to use within the AI web chat.\n\nThese file uploads are insufficiently validated before being written to Drupal\u0027s temporary directory. In some cases, this may lead to cross-site scripting (XSS).",
  "id": "DRUPAL-CONTRIB-2026-065",
  "modified": "2026-07-01T17:20:16.000Z",
  "published": "2026-07-01T17:20:16.000Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://www.drupal.org/sa-contrib-2026-065"
    }
  ],
  "schema_version": "1.7.0"
}

CVE-2026-58587 (GCVE-0-2026-58587)

Vulnerability from cvelistv5 – Published: 2026-07-10 21:46 – Updated: 2026-07-13 16:08

Title

Drupal Canvas - Moderately critical - Improper validation - SA-CONTRIB-2026-065

Summary

Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal Drupal Canvas allows Cross-Site Scripting (XSS). This issue affects Drupal Canvas versions: from 0.0.0 to 1.4.2, from 1.5.0 to 1.5.2, from 1.6.0 to 1.6.1, from 1.7.0 to 1.7.1.

Severity

6.1 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-13 16:07 UTC

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting")

Assigner

drupal CNA under the mitre root

CNA scorecard D 52/100 over 103 records in the last 180 days details

References

1 reference

URL	Tags
https://www.drupal.org/sa-contrib-2026-065

Impacted products

1 product

Vendor	Product	Version
Drupal	Drupal Canvas	Affected: 0.0.0 , < 1.4.2 (semver) Affected: 1.5.0 , < 1.5.2 (semver) Affected: 1.6.0 , < 1.6.1 (semver) Affected: 1.7.0 , < 1.7.1 (semver)

Date Public

2026-07-01 17:20

Credits

AKHIL BABU (akhil babu) Alex Bronstein (effulgentsia) Christian LÃ³pez EspÃnola (penyaskito) Juraj Nemec (poker10)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 6.1,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "LOW",
              "privilegesRequired": "NONE",
              "scope": "CHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-58587",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-13T16:07:53.243392Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-13T16:08:13.354Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://www.drupal.org/project/canvas",
          "product": "Drupal Canvas",
          "repo": "https://git.drupalcode.org/project/canvas",
          "vendor": "Drupal",
          "versions": [
            {
              "lessThan": "1.4.2",
              "status": "affected",
              "version": "0.0.0",
              "versionType": "semver"
            },
            {
              "lessThan": "1.5.2",
              "status": "affected",
              "version": "1.5.0",
              "versionType": "semver"
            },
            {
              "lessThan": "1.6.1",
              "status": "affected",
              "version": "1.6.0",
              "versionType": "semver"
            },
            {
              "lessThan": "1.7.1",
              "status": "affected",
              "version": "1.7.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "AKHIL BABU (akhil babu)"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Alex Bronstein (effulgentsia)"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Christian L\u00c3\u00b3pez Esp\u00c3\u00adnola (penyaskito)"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "Juraj Nemec (poker10)"
        }
      ],
      "datePublic": "2026-07-01T17:20:16.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Improper Neutralization of Input During Web Page Generation (\"Cross-site Scripting\") vulnerability in Drupal Drupal Canvas allows Cross-Site Scripting (XSS). This issue affects Drupal Canvas versions: from 0.0.0 to 1.4.2, from 1.5.0 to 1.5.2, from 1.6.0 to 1.6.1, from 1.7.0 to 1.7.1."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-63",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-63 Cross-Site Scripting (XSS)"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79 Improper Neutralization of Input During Web Page Generation (\"Cross-site Scripting\")",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-10T21:46:15.116Z",
        "orgId": "2c85b837-eb8b-40ed-9d74-228c62987387",
        "shortName": "drupal"
      },
      "references": [
        {
          "url": "https://www.drupal.org/sa-contrib-2026-065"
        }
      ],
      "title": "Drupal Canvas - Moderately critical - Improper validation - SA-CONTRIB-2026-065"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "2c85b837-eb8b-40ed-9d74-228c62987387",
    "assignerShortName": "drupal",
    "cveId": "CVE-2026-58587",
    "datePublished": "2026-07-10T21:46:15.116Z",
    "dateReserved": "2026-07-01T17:08:05.252Z",
    "dateUpdated": "2026-07-13T16:08:13.354Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

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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.
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