Vulnerability-Lookup

(CVE-2026-84915)

Vulnerability from drupal – Published: 2026-09-02 16:29 – Updated: 2026-09-02 16:29 – Source website

Details

This module enables you use UI Patterns with blocks, for use in Layout Builder.

The module doesn't sufficiently validate user input before passing to token replacement.

This vulnerability is mitigated by the fact that an attacker must have a role with the ability to edit layout builder layouts.

Credits

Marcus Johansson (marcus_johansson) www.drupal.org/u/marcus_johansson

References

URL

Type

https://www.drupal.org/sa-contrib-2026-123

WEB

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "affected_versions": "\u003c1.2.7"
      },
      "package": {
        "ecosystem": "Packagist:https://packages.drupal.org/8",
        "name": "drupal/component_blocks"
      },
      "ranges": [
        {
          "database_specific": {
            "constraint": "\u003c1.2.7"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.2.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "severity": []
    }
  ],
  "aliases": [
    "CVE-2026-84915"
  ],
  "credits": [
    {
      "contact": [
        "https://www.drupal.org/u/marcus_johansson"
      ],
      "name": "Marcus Johansson (marcus_johansson)"
    }
  ],
  "details": "This module enables you use UI Patterns with blocks, for use in Layout Builder.\n\nThe module doesn\u0027t sufficiently validate user input before passing to token replacement.\n\nThis vulnerability is mitigated by the fact that an attacker must have a role with the ability to edit layout builder layouts.",
  "id": "DRUPAL-CONTRIB-2026-123",
  "modified": "2026-09-02T16:29:52.000Z",
  "published": "2026-09-02T16:29:52.000Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://www.drupal.org/sa-contrib-2026-123"
    }
  ],
  "schema_version": "1.7.0"
}

CVE-2026-84915 (GCVE-0-2026-84915)

Vulnerability from cvelistv5 – Published: 2026-10-22 01:22 – Updated: 2026-10-22 17:09

Title

Component blocks - Moderately critical - Cross site scripting - SA-CONTRIB-2026-123

Summary

Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal Component blocks allows Stored XSS. This issue affects Component blocks versions: from 0.0.0 to 1.2.7.

Severity

4.6 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:R/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 2026-10-22 17:08 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 53/100 over 175 records in the last 180 days details

References

1 reference

URL	Tags
https://www.drupal.org/sa-contrib-2026-123

Impacted products

1 product

Vendor	Product	Version
Drupal	Component blocks	Affected: 0.0.0 , < 1.2.7 (semver)

Date Public

2026-09-02 16:29

Credits

Marcus Johansson (marcus_johansson) Lee Rowlands (larowlan) Greg Knaddison (greggles) Lee Rowlands (larowlan)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 4.6,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "LOW",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-84915",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-22T17:08:55.429559Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-22T17:09:33.536Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://www.drupal.org/project/component_blocks",
          "product": "Component blocks",
          "repo": "https://git.drupalcode.org/project/component_blocks",
          "vendor": "Drupal",
          "versions": [
            {
              "lessThan": "1.2.7",
              "status": "affected",
              "version": "0.0.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Marcus Johansson (marcus_johansson)"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Lee Rowlands (larowlan)"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "Greg Knaddison (greggles)"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "Lee Rowlands (larowlan)"
        }
      ],
      "datePublic": "2026-09-02T16:29:52.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Improper Neutralization of Input During Web Page Generation (\"Cross-site Scripting\") vulnerability in Drupal Component blocks allows Stored XSS. This issue affects Component blocks versions: from 0.0.0 to 1.2.7."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-592",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-592 Stored 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": "2026-10-22T01:22:14.360Z",
        "orgId": "2c85b837-eb8b-40ed-9d74-228c62987387",
        "shortName": "drupal"
      },
      "references": [
        {
          "url": "https://www.drupal.org/sa-contrib-2026-123"
        }
      ],
      "title": "Component blocks - Moderately critical - Cross site scripting - SA-CONTRIB-2026-123"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "2c85b837-eb8b-40ed-9d74-228c62987387",
    "assignerShortName": "drupal",
    "cveId": "CVE-2026-84915",
    "datePublished": "2026-10-22T01:22:14.360Z",
    "dateReserved": "2026-09-02T15:44:19.097Z",
    "dateUpdated": "2026-10-22T17:09:33.536Z",
    "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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