Vulnerability-Lookup

GHSA-52W9-QFC2-5XQ5

Vulnerability from github – Published: 2025-08-19 09:30 – Updated: 2025-08-19 09:30

Details

The Cloudflare Image Resizing plugin for WordPress is vulnerable to Remote Code Execution due to missing authentication and insufficient sanitization within its hook_rest_pre_dispatch() method in all versions up to, and including, 1.5.6. This makes it possible for unauthenticated attackers to inject arbitrary PHP into the codebase, achieving remote code execution.

Severity

9.8 (Critical)


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

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2025-8723"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-94"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-08-19T08:15:30Z",
    "severity": "CRITICAL"
  },
  "details": "The Cloudflare Image Resizing plugin for WordPress is vulnerable to Remote Code Execution due to missing authentication and insufficient sanitization within its hook_rest_pre_dispatch() method in all versions up to, and including, 1.5.6. This makes it possible for unauthenticated attackers to inject arbitrary PHP into the codebase, achieving remote code execution.",
  "id": "GHSA-52w9-qfc2-5xq5",
  "modified": "2025-08-19T09:30:30Z",
  "published": "2025-08-19T09:30:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-8723"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/changeset/3337593"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/changeset/3341917"
    },
    {
      "type": "WEB",
      "url": "https://wordpress.org/plugins/cf-image-resizing/#developers"
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/0f3b3c1a-1d45-4e2f-854a-171fe759257b?source=cve"
    }
  ],
  "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"
    }
  ]
}

CVE-2025-8723 (GCVE-0-2025-8723)

Vulnerability from cvelistv5 – Published: 2025-08-19 07:26 – Updated: 2026-04-08 16:35

Title

Cloudflare Image Resizing <= 1.5.6 - Missing Authentication to Unauthenticated Remote Code Execution via rest_pre_dispatch Hook

Summary

Severity

9.8 (Critical)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-08-19 13:18 UTC

CWE

CWE-94 - Improper Control of Generation of Code ('Code Injection')

Assigner

Wordfence CNA under the mitre root

CNA scorecard C 65/100 over 2380 records in the last 180 days details

References

4 references

URL	Tags
https://www.wordfence.com/threat-intel/vulnerabil…
https://wordpress.org/plugins/cf-image-resizing/#…
https://plugins.trac.wordpress.org/changeset/3337593/
https://plugins.trac.wordpress.org/changeset/3341917/

Impacted products

1 product

Vendor	Product	Version
mecanik	Cloudflare Image Resizing – Optimize & Accelerate Your Images	Affected: 0 , ≤ 1.5.6 (semver)

Credits

Kenneth Dunn

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-8723",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-08-19T13:18:53.589604Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-08-19T13:19:05.368Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Cloudflare Image Resizing \u2013 Optimize \u0026 Accelerate Your Images",
          "vendor": "mecanik",
          "versions": [
            {
              "lessThanOrEqual": "1.5.6",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
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          "type": "finder",
          "value": "Kenneth Dunn"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Cloudflare Image Resizing plugin for WordPress is vulnerable to Remote Code Execution due to missing authentication and insufficient sanitization within its hook_rest_pre_dispatch() method in all versions up to, and including, 1.5.6. This makes it possible for unauthenticated attackers to inject arbitrary PHP into the codebase, achieving remote code execution."
        }
      ],
      "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-94",
              "description": "CWE-94 Improper Control of Generation of Code (\u0027Code Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-08T16:35:38.694Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/0f3b3c1a-1d45-4e2f-854a-171fe759257b?source=cve"
        },
        {
          "url": "https://wordpress.org/plugins/cf-image-resizing/#developers"
        },
        {
          "url": "https://plugins.trac.wordpress.org/changeset/3337593/"
        },
        {
          "url": "https://plugins.trac.wordpress.org/changeset/3341917/"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2025-08-08T16:51:54.000Z",
          "value": "Vendor Notified"
        },
        {
          "lang": "en",
          "time": "2025-08-18T19:08:51.000Z",
          "value": "Disclosed"
        }
      ],
      "title": "Cloudflare Image Resizing \u003c= 1.5.6 - Missing Authentication to Unauthenticated Remote Code Execution via rest_pre_dispatch Hook"
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  "cveMetadata": {
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    "assignerShortName": "Wordfence",
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    "datePublished": "2025-08-19T07:26:26.487Z",
    "dateReserved": "2025-08-07T20:42:36.986Z",
    "dateUpdated": "2026-04-08T16:35:38.694Z",
    "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.

Vulnerability timeline

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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.
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.

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