Vulnerability-Lookup

GHSA-V86M-GG8V-4873

Vulnerability from github – Published: 2026-04-10 03:31 – Updated: 2026-04-10 03:31

Details

The WP-Optimize plugin for WordPress is vulnerable to unauthorized access of functionality due to missing capability checks in the receive_heartbeat() function in includes/class-wp-optimize-heartbeat.php in all versions up to, and including, 4.5.0. This is due to the Heartbeat handler directly invoking Updraft_Smush_Manager_Commands methods without verifying user capabilities, nonce tokens, or the allowed commands whitelist that the normal AJAX handler (updraft_smush_ajax) enforces. This makes it possible for authenticated attackers, with Subscriber-level access and above, to invoke admin-only Smush operations including reading log files (get_smush_logs), deleting all backup images (clean_all_backup_images), triggering bulk image processing (process_bulk_smush), and modifying Smush options (update_smush_options).

Severity

5.4 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-2712"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-863"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-10T02:16:02Z",
    "severity": "MODERATE"
  },
  "details": "The WP-Optimize plugin for WordPress is vulnerable to unauthorized access of functionality due to missing capability checks in the `receive_heartbeat()` function in `includes/class-wp-optimize-heartbeat.php` in all versions up to, and including, 4.5.0. This is due to the Heartbeat handler directly invoking `Updraft_Smush_Manager_Commands` methods without verifying user capabilities, nonce tokens, or the allowed commands whitelist that the normal AJAX handler (`updraft_smush_ajax`) enforces. This makes it possible for authenticated attackers, with Subscriber-level access and above, to invoke admin-only Smush operations including reading log files (`get_smush_logs`), deleting all backup images (`clean_all_backup_images`), triggering bulk image processing (`process_bulk_smush`), and modifying Smush options (`update_smush_options`).",
  "id": "GHSA-v86m-gg8v-4873",
  "modified": "2026-04-10T03:31:10Z",
  "published": "2026-04-10T03:31:10Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2712"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/wp-optimize/tags/4.4.1/includes/class-wp-optimize-heartbeat.php#L65"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/wp-optimize/tags/4.4.1/includes/class-wp-optimize-heartbeat.php#L82"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/wp-optimize/trunk/includes/class-wp-optimize-heartbeat.php#L65"
    },
    {
      "type": "WEB",
      "url": "https://research.cleantalk.org/cve-2026-2712"
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/6a0a376e-ea3a-40ca-9341-f28f92e15e02?source=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-2712 (GCVE-0-2026-2712)

Vulnerability from cvelistv5 – Published: 2026-04-10 01:24 – Updated: 2026-04-10 13:46

Title

WP-Optimize <= 4.5.0 - Missing Authorization to Authenticated (Subscriber+) Plugin Settings Update and Image Manipulation

Summary

The WP-Optimize plugin for WordPress is vulnerable to unauthorized access of functionality due to missing capability checks in the `receive_heartbeat()` function in `includes/class-wp-optimize-heartbeat.php` in all versions up to, and including, 4.5.0. This is due to the Heartbeat handler directly invoking `Updraft_Smush_Manager_Commands` methods without verifying user capabilities, nonce tokens, or the allowed commands whitelist that the normal AJAX handler (`updraft_smush_ajax`) enforces. This makes it possible for authenticated attackers, with Subscriber-level access and above, to invoke admin-only Smush operations including reading log files (`get_smush_logs`), deleting all backup images (`clean_all_backup_images`), triggering bulk image processing (`process_bulk_smush`), and modifying Smush options (`update_smush_options`).

Severity

5.4 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-04-10 13:46 UTC

CWE

CWE-863 - Incorrect Authorization

Assigner

Wordfence mitre root

References

5 references

URL	Tags
https://www.wordfence.com/threat-intel/vulnerabil…
https://plugins.trac.wordpress.org/browser/wp-opt…
https://plugins.trac.wordpress.org/browser/wp-opt…
https://plugins.trac.wordpress.org/browser/wp-opt…
https://research.cleantalk.org/cve-2026-2712/

Impacted products

1 product

Vendor	Product	Version
davidanderson	WP-Optimize – Cache, Compress images, Minify & Clean database to boost page speed & performance	Affected: 0 , ≤ 4.5.0 (semver)

Credits

Dmitrii Ignatyev

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-2712",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-10T13:46:09.364998Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-10T13:46:16.718Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "WP-Optimize \u2013 Cache, Compress images, Minify \u0026 Clean database to boost page speed \u0026 performance",
          "vendor": "davidanderson",
          "versions": [
            {
              "lessThanOrEqual": "4.5.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Dmitrii Ignatyev"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The WP-Optimize plugin for WordPress is vulnerable to unauthorized access of functionality due to missing capability checks in the `receive_heartbeat()` function in `includes/class-wp-optimize-heartbeat.php` in all versions up to, and including, 4.5.0. This is due to the Heartbeat handler directly invoking `Updraft_Smush_Manager_Commands` methods without verifying user capabilities, nonce tokens, or the allowed commands whitelist that the normal AJAX handler (`updraft_smush_ajax`) enforces. This makes it possible for authenticated attackers, with Subscriber-level access and above, to invoke admin-only Smush operations including reading log files (`get_smush_logs`), deleting all backup images (`clean_all_backup_images`), triggering bulk image processing (`process_bulk_smush`), and modifying Smush options (`update_smush_options`)."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 5.4,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-863",
              "description": "CWE-863 Incorrect Authorization",
              "lang": "en",
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-10T01:24:57.952Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/6a0a376e-ea3a-40ca-9341-f28f92e15e02?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/wp-optimize/tags/4.4.1/includes/class-wp-optimize-heartbeat.php#L65"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/wp-optimize/trunk/includes/class-wp-optimize-heartbeat.php#L65"
        },
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          "url": "https://plugins.trac.wordpress.org/browser/wp-optimize/tags/4.4.1/includes/class-wp-optimize-heartbeat.php#L82"
        },
        {
          "url": "https://research.cleantalk.org/cve-2026-2712/"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-03-03T12:42:09.000Z",
          "value": "Vendor Notified"
        },
        {
          "lang": "en",
          "time": "2026-04-09T11:52:37.000Z",
          "value": "Disclosed"
        }
      ],
      "title": "WP-Optimize \u003c= 4.5.0 - Missing Authorization to Authenticated (Subscriber+) Plugin Settings Update and Image Manipulation"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
    "cveId": "CVE-2026-2712",
    "datePublished": "2026-04-10T01:24:57.952Z",
    "dateReserved": "2026-02-18T20:31:43.704Z",
    "dateUpdated": "2026-04-10T13:46:16.718Z",
    "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.

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.