Vulnerability-Lookup

CVE-2026-84757 (GCVE-0-2026-84757)

Vulnerability from cvelistv5 – Published: 2026-09-03 16:31 – Updated: 2026-09-03 17:35

Title

WordPress WP Compress plugin <= 7.21.28 - Settings Change vulnerability

Summary

Unauthenticated Settings Change in WP Compress <= 7.21.28 versions.

Severity

8.2 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-03 17:34 UTC

CWE

CWE-862 - Missing Authorization

Assigner

Patchstack mitre root

References

1 reference

URL	Tags
https://patchstack.com/database/wordpress/plugin/…	vdb-entry

Impacted products

1 product

Vendor	Product	Version	CPE status
AresIT	WP Compress	Affected: n/a , ≤ 7.21.28 (custom)	guessed

Credits

Thaer.Assfour | Patchstack Bug Bounty Program

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-84757",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-03T17:34:49.003245Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-03T17:35:28.197Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://wordpress.org/plugins",
          "defaultStatus": "unaffected",
          "packageName": "wp-compress-image-optimizer",
          "product": "WP Compress",
          "vendor": "AresIT",
          "versions": [
            {
              "changes": [
                {
                  "at": "7.22.0",
                  "status": "unaffected"
                }
              ],
              "lessThanOrEqual": "7.21.28",
              "status": "affected",
              "version": "n/a",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "user": "00000000-0000-4000-9000-000000000000",
          "value": "Thaer.Assfour | Patchstack Bug Bounty Program"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Unauthenticated Settings Change in WP Compress \u003c= 7.21.28 versions."
            }
          ],
          "value": "Unauthenticated Settings Change in WP Compress \u003c= 7.21.28 versions."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-180",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-180 Exploiting Incorrectly Configured Access Control Security Levels"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 8.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-862",
              "description": "CWE-862 Missing Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-03T16:31:46.180Z",
        "orgId": "21595511-bba5-4825-b968-b78d1f9984a3",
        "shortName": "Patchstack"
      },
      "references": [
        {
          "tags": [
            "vdb-entry"
          ],
          "url": "https://patchstack.com/database/wordpress/plugin/wp-compress-image-optimizer/vulnerability/wordpress-wp-compress-plugin-7-21-28-settings-change-vulnerability?_s_id=cve"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Update the WordPress WP Compress Plugin to the latest available version (at least 7.22.0)."
            }
          ],
          "value": "Update the WordPress WP Compress Plugin to the latest available version (at least 7.22.0)."
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "WordPress WP Compress plugin \u003c= 7.21.28 - Settings Change vulnerability",
      "x_generator": {
        "engine": "Vulnogram 0.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "21595511-bba5-4825-b968-b78d1f9984a3",
    "assignerShortName": "Patchstack",
    "cveId": "CVE-2026-84757",
    "datePublished": "2026-09-03T16:31:46.180Z",
    "dateReserved": "2026-09-02T09:57:31.410Z",
    "dateUpdated": "2026-09-03T17:35:28.197Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-84757",
      "date": "2026-09-16",
      "epss": "0.00225",
      "percentile": "0.13329"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-84757\",\"sourceIdentifier\":\"audit@patchstack.com\",\"published\":\"2026-09-03T17:17:26.660\",\"lastModified\":\"2026-09-03T18:17:29.813\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Unauthenticated Settings Change in WP Compress \u003c= 7.21.28 versions.\"}],\"affected\":[{\"source\":\"audit@patchstack.com\",\"affectedData\":[{\"vendor\":\"AresIT\",\"product\":\"WP Compress\",\"defaultStatus\":\"unaffected\",\"collectionURL\":\"https://wordpress.org/plugins\",\"packageName\":\"wp-compress-image-optimizer\",\"versions\":[{\"version\":\"n/a\",\"lessThanOrEqual\":\"7.21.28\",\"versionType\":\"custom\",\"status\":\"affected\",\"changes\":[{\"at\":\"7.22.0\",\"status\":\"unaffected\"}]}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"audit@patchstack.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:L\",\"baseScore\":8.2,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":3.9,\"impactScore\":4.2}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-09-03T17:34:49.003245Z\",\"id\":\"CVE-2026-84757\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"yes\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"audit@patchstack.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-862\"}]}],\"references\":[{\"url\":\"https://patchstack.com/database/wordpress/plugin/wp-compress-image-optimizer/vulnerability/wordpress-wp-compress-plugin-7-21-28-settings-change-vulnerability?_s_id=cve\",\"source\":\"audit@patchstack.com\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-84757\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-09-03T17:34:49.003245Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-09-03T17:35:19.907Z\"}}], \"cna\": {\"title\": \"WordPress WP Compress plugin \u003c= 7.21.28 - Settings Change vulnerability\", \"source\": {\"discovery\": \"EXTERNAL\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"user\": \"00000000-0000-4000-9000-000000000000\", \"value\": \"Thaer.Assfour | Patchstack Bug Bounty Program\"}], \"impacts\": [{\"capecId\": \"CAPEC-180\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"CAPEC-180 Exploiting Incorrectly Configured Access Control Security Levels\"}]}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 8.2, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"LOW\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"NONE\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"AresIT\", \"product\": \"WP Compress\", \"versions\": [{\"status\": \"affected\", \"changes\": [{\"at\": \"7.22.0\", \"status\": \"unaffected\"}], \"version\": \"n/a\", \"versionType\": \"custom\", \"lessThanOrEqual\": \"7.21.28\"}], \"packageName\": \"wp-compress-image-optimizer\", \"collectionURL\": \"https://wordpress.org/plugins\", \"defaultStatus\": \"unaffected\"}], \"solutions\": [{\"lang\": \"en\", \"value\": \"Update the WordPress WP Compress Plugin to the latest available version (at least 7.22.0).\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"Update the WordPress WP Compress Plugin to the latest available version (at least 7.22.0).\", \"base64\": false}]}], \"references\": [{\"url\": \"https://patchstack.com/database/wordpress/plugin/wp-compress-image-optimizer/vulnerability/wordpress-wp-compress-plugin-7-21-28-settings-change-vulnerability?_s_id=cve\", \"tags\": [\"vdb-entry\"]}], \"x_generator\": {\"engine\": \"Vulnogram 0.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"Unauthenticated Settings Change in WP Compress \u003c= 7.21.28 versions.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"Unauthenticated Settings Change in WP Compress \u003c= 7.21.28 versions.\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-862\", \"description\": \"CWE-862 Missing Authorization\"}]}], \"providerMetadata\": {\"orgId\": \"21595511-bba5-4825-b968-b78d1f9984a3\", \"shortName\": \"Patchstack\", \"dateUpdated\": \"2026-09-03T16:31:46.180Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-84757\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-09-03T17:35:28.197Z\", \"dateReserved\": \"2026-09-02T09:57:31.410Z\", \"assignerOrgId\": \"21595511-bba5-4825-b968-b78d1f9984a3\", \"datePublished\": \"2026-09-03T16:31:46.180Z\", \"assignerShortName\": \"Patchstack\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

FKIE_CVE-2026-84757

Vulnerability from fkie_nvd - Published: 2026-09-03 17:17 - Updated: 2026-09-03 18:17

Severity

8.2 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L

Summary

Unauthenticated Settings Change in WP Compress <= 7.21.28 versions.

References

	URL	Tags
	audit@patchstack.com	https://patchstack.com/database/wordpress/plugin/wp-compress-image-optimizer/vulnerability/wordpress-wp-compress-plugin-7-21-28-settings-change-vulnerability?_s_id=cve

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://wordpress.org/plugins",
          "defaultStatus": "unaffected",
          "packageName": "wp-compress-image-optimizer",
          "product": "WP Compress",
          "vendor": "AresIT",
          "versions": [
            {
              "changes": [
                {
                  "at": "7.22.0",
                  "status": "unaffected"
                }
              ],
              "lessThanOrEqual": "7.21.28",
              "status": "affected",
              "version": "n/a",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "audit@patchstack.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Unauthenticated Settings Change in WP Compress \u003c= 7.21.28 versions."
    }
  ],
  "id": "CVE-2026-84757",
  "lastModified": "2026-09-03T18:17:29.813",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 8.2,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 4.2,
        "source": "audit@patchstack.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-84757",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-03T17:34:49.003245Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-09-03T17:17:26.660",
  "references": [
    {
      "source": "audit@patchstack.com",
      "url": "https://patchstack.com/database/wordpress/plugin/wp-compress-image-optimizer/vulnerability/wordpress-wp-compress-plugin-7-21-28-settings-change-vulnerability?_s_id=cve"
    }
  ],
  "sourceIdentifier": "audit@patchstack.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ],
      "source": "audit@patchstack.com",
      "type": "Secondary"
    }
  ]
}

GHSA-RCFM-4Q7X-CQ83

Vulnerability from github – Published: 2026-09-03 18:31 – Updated: 2026-09-03 18:31

Details

Unauthenticated Settings Change in WP Compress <= 7.21.28 versions.

Severity

8.2 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-84757"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-862"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-03T17:17:26Z",
    "severity": "HIGH"
  },
  "details": "Unauthenticated Settings Change in WP Compress \u003c= 7.21.28 versions.",
  "id": "GHSA-rcfm-4q7x-cq83",
  "modified": "2026-09-03T18:31:50Z",
  "published": "2026-09-03T18:31:50Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-84757"
    },
    {
      "type": "WEB",
      "url": "https://patchstack.com/database/wordpress/plugin/wp-compress-image-optimizer/vulnerability/wordpress-wp-compress-plugin-7-21-28-settings-change-vulnerability?_s_id=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L",
      "type": "CVSS_V3"
    }
  ]
}

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.

Action not permitted

CVE-2026-84757 (GCVE-0-2026-84757)

FKIE_CVE-2026-84757

GHSA-RCFM-4Q7X-CQ83

Tags

Sightings

Nomenclature

Related by attack behaviour