CVE-2026-5581 (GCVE-0-2026-5581)

Vulnerability from cvelistv5 – Published: 2026-08-05 06:37 – Updated: 2026-08-05 15:54
VLAI
Title
Multi Uploader for Gravity Forms <= 1.1.8 - Missing Authorization to Unauthenticated Arbitrary Media Deletion
Summary
The Multi Uploader for Gravity Forms plugin for WordPress is vulnerable to unauthorized arbitrary media deletion in all versions up to, and including, 1.1.8. This is due to missing capability checks in the `plupload_ajax_delete_file()` function, which is registered via `wp_ajax_nopriv_gfmu_delete_file`. The nonce intended for CSRF protection is exposed on any public-facing page containing a multi-uploader form field via the `GFMU_options` JavaScript object. This makes it possible for unauthenticated attackers to permanently delete any WordPress media attachment by supplying its attachment ID, potentially leading to complete media library destruction.
Severity
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
sh1zen Multi Uploader for Gravity Forms Affected: 0 , ≤ 1.1.8 (semver)
Create a notification for this product.
Credits
Riski Gana Prasetya
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-5581",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-05T15:53:12.135319Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-05T15:54:04.208Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Multi Uploader for Gravity Forms",
          "vendor": "sh1zen",
          "versions": [
            {
              "lessThanOrEqual": "1.1.8",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Riski Gana Prasetya"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Multi Uploader for Gravity Forms plugin for WordPress is vulnerable to unauthorized arbitrary media deletion in all versions up to, and including, 1.1.8. This is due to missing capability checks in the `plupload_ajax_delete_file()` function, which is registered via `wp_ajax_nopriv_gfmu_delete_file`. The nonce intended for CSRF protection is exposed on any public-facing page containing a multi-uploader form field via the `GFMU_options` JavaScript object. This makes it possible for unauthenticated attackers to permanently delete any WordPress media attachment by supplying its attachment ID, potentially leading to complete media library destruction."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 9.1,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-862",
              "description": "CWE-862 Missing Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T06:37:53.660Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/16dca898-1a98-4e0b-8f48-dc01ba2dc4e6?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/gf-multi-uploader/tags/1.1.8/inc/GFMUHandlePluploader.class.php#L66"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/gf-multi-uploader/trunk/inc/GFMUHandlePluploader.class.php#L66"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/gf-multi-uploader/tags/1.1.8/GFMUAddon.class.php#L131"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/gf-multi-uploader/trunk/GFMUAddon.class.php#L131"
        },
        {
          "url": "https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026new=3501985%40gf-multi-uploader%2Ftrunk\u0026old=3421317%40gf-multi-uploader%2Ftrunk\u0026sfp_email=\u0026sfph_mail="
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-08-04T18:27:23.000Z",
          "value": "Disclosed"
        }
      ],
      "title": "Multi Uploader for Gravity Forms \u003c= 1.1.8 - Missing Authorization to Unauthenticated Arbitrary Media Deletion"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
    "cveId": "CVE-2026-5581",
    "datePublished": "2026-08-05T06:37:53.660Z",
    "dateReserved": "2026-04-04T16:22:40.644Z",
    "dateUpdated": "2026-08-05T15:54:04.208Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-5581",
      "date": "2026-08-08",
      "epss": "0.00456",
      "percentile": "0.37377"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-5581\",\"sourceIdentifier\":\"security@wordfence.com\",\"published\":\"2026-08-05T08:16:35.007\",\"lastModified\":\"2026-08-05T16:16:58.090\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The Multi Uploader for Gravity Forms plugin for WordPress is vulnerable to unauthorized arbitrary media deletion in all versions up to, and including, 1.1.8. This is due to missing capability checks in the `plupload_ajax_delete_file()` function, which is registered via `wp_ajax_nopriv_gfmu_delete_file`. The nonce intended for CSRF protection is exposed on any public-facing page containing a multi-uploader form field via the `GFMU_options` JavaScript object. This makes it possible for unauthenticated attackers to permanently delete any WordPress media attachment by supplying its attachment ID, potentially leading to complete media library destruction.\"}],\"affected\":[{\"source\":\"security@wordfence.com\",\"affectedData\":[{\"vendor\":\"sh1zen\",\"product\":\"Multi Uploader for Gravity Forms\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"0\",\"lessThanOrEqual\":\"1.1.8\",\"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:N/UI:N/S:U/C:N/I:H/A:H\",\"baseScore\":9.1,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.2}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-08-05T15:53:12.135319Z\",\"id\":\"CVE-2026-5581\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"yes\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"security@wordfence.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-862\"}]}],\"references\":[{\"url\":\"https://plugins.trac.wordpress.org/browser/gf-multi-uploader/tags/1.1.8/GFMUAddon.class.php#L131\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/browser/gf-multi-uploader/tags/1.1.8/inc/GFMUHandlePluploader.class.php#L66\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/browser/gf-multi-uploader/trunk/GFMUAddon.class.php#L131\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/browser/gf-multi-uploader/trunk/inc/GFMUHandlePluploader.class.php#L66\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026new=3501985%40gf-multi-uploader%2Ftrunk\u0026old=3421317%40gf-multi-uploader%2Ftrunk\u0026sfp_email=\u0026sfph_mail=\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://www.wordfence.com/threat-intel/vulnerabilities/id/16dca898-1a98-4e0b-8f48-dc01ba2dc4e6?source=cve\",\"source\":\"security@wordfence.com\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-5581\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-08-05T15:53:12.135319Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-08-05T15:53:59.439Z\"}}], \"cna\": {\"title\": \"Multi Uploader for Gravity Forms \u003c= 1.1.8 - Missing Authorization to Unauthenticated Arbitrary Media Deletion\", \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Riski Gana Prasetya\"}], \"metrics\": [{\"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 9.1, \"baseSeverity\": \"CRITICAL\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H\"}}], \"affected\": [{\"vendor\": \"sh1zen\", \"product\": \"Multi Uploader for Gravity Forms\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"1.1.8\"}], \"defaultStatus\": \"unaffected\"}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2026-08-04T18:27:23.000Z\", \"value\": \"Disclosed\"}], \"references\": [{\"url\": \"https://www.wordfence.com/threat-intel/vulnerabilities/id/16dca898-1a98-4e0b-8f48-dc01ba2dc4e6?source=cve\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/gf-multi-uploader/tags/1.1.8/inc/GFMUHandlePluploader.class.php#L66\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/gf-multi-uploader/trunk/inc/GFMUHandlePluploader.class.php#L66\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/gf-multi-uploader/tags/1.1.8/GFMUAddon.class.php#L131\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/gf-multi-uploader/trunk/GFMUAddon.class.php#L131\"}, {\"url\": \"https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026new=3501985%40gf-multi-uploader%2Ftrunk\u0026old=3421317%40gf-multi-uploader%2Ftrunk\u0026sfp_email=\u0026sfph_mail=\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"The Multi Uploader for Gravity Forms plugin for WordPress is vulnerable to unauthorized arbitrary media deletion in all versions up to, and including, 1.1.8. This is due to missing capability checks in the `plupload_ajax_delete_file()` function, which is registered via `wp_ajax_nopriv_gfmu_delete_file`. The nonce intended for CSRF protection is exposed on any public-facing page containing a multi-uploader form field via the `GFMU_options` JavaScript object. This makes it possible for unauthenticated attackers to permanently delete any WordPress media attachment by supplying its attachment ID, potentially leading to complete media library destruction.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-862\", \"description\": \"CWE-862 Missing Authorization\"}]}], \"providerMetadata\": {\"orgId\": \"b15e7b5b-3da4-40ae-a43c-f7aa60e62599\", \"shortName\": \"Wordfence\", \"dateUpdated\": \"2026-08-05T06:37:53.660Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-5581\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-05T15:54:04.208Z\", \"dateReserved\": \"2026-04-04T16:22:40.644Z\", \"assignerOrgId\": \"b15e7b5b-3da4-40ae-a43c-f7aa60e62599\", \"datePublished\": \"2026-08-05T06:37:53.660Z\", \"assignerShortName\": \"Wordfence\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.