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    6 vulnerabilities found for EWWW Image Optimizer by Unknown

    CVE-2026-91072 (GCVE-0-2026-91072)

    Vulnerability from nvd – Published: 2026-09-30 06:00 – Updated: 2026-09-30 13:37
    VLAI
    Title
    EWWW Image Optimizer < 8.8.0 - Admin+ WebP File Rename and Deletion via Unrestricted Path in WebP Migration Handler
    Summary
    The EWWW Image Optimizer WordPress plugin before 8.8.0 does not confine a WebP-derivative file migration routine to the current site's own uploads directory, letting an attacker with Administrator-level access rename or delete existing WebP-derivative image files outside that scope, including, on a multisite network, files belonging to a different site they have no access to.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-09-30 13:23 UTC
    CWE
    Assigner
    WPScan CNA under the mitre root
    CNA scorecard E 44/100 over 1603 records in the last 180 days details
    References
    URL Tags
    https://wpscan.com/vulnerability/c77770c5-d1af-47… exploitvdb-entrytechnical-description
    Impacted products
    Vendor Product Version
    Unknown EWWW Image Optimizer Affected: 0 , < 8.8.0 (semver)
    Create a notification for this product.
    Show details on NVD website

    {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "cvssV3_1": {
                  "attackComplexity": "HIGH",
                  "attackVector": "NETWORK",
                  "availabilityImpact": "LOW",
                  "baseScore": 4.4,
                  "baseSeverity": "MEDIUM",
                  "confidentialityImpact": "NONE",
                  "integrityImpact": "LOW",
                  "privilegesRequired": "HIGH",
                  "scope": "CHANGED",
                  "userInteraction": "NONE",
                  "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:L",
                  "version": "3.1"
                }
              },
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-91072",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-09-30T13:23:17.692335Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "problemTypes": [
              {
                "descriptions": [
                  {
                    "cweId": "CWE-73",
                    "description": "CWE-73 External Control of File Name or Path",
                    "lang": "en",
                    "type": "CWE"
                  }
                ]
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-09-30T13:37:22.035Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "EWWW Image Optimizer",
              "vendor": "Unknown",
              "versions": [
                {
                  "lessThan": "8.8.0",
                  "status": "affected",
                  "version": "0",
                  "versionType": "semver"
                }
              ]
            }
          ],
          "credits": [
            {
              "lang": "en",
              "type": "finder",
              "value": "Karthik Ramakrishnan"
            },
            {
              "lang": "en",
              "type": "coordinator",
              "value": "WPScan"
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "The EWWW Image Optimizer WordPress plugin before 8.8.0 does not confine a WebP-derivative file migration routine to the current site\u0027s own uploads directory, letting an attacker with Administrator-level access rename or delete existing WebP-derivative image files outside that scope, including, on a multisite network, files belonging to a different site they have no access to."
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "description": "CWE-73 External Control of File Name or Path",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-09-30T06:00:24.712Z",
            "orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
            "shortName": "WPScan"
          },
          "references": [
            {
              "tags": [
                "exploit",
                "vdb-entry",
                "technical-description"
              ],
              "url": "https://wpscan.com/vulnerability/c77770c5-d1af-47f6-9aee-a50d4a919732/"
            }
          ],
          "source": {
            "discovery": "EXTERNAL"
          },
          "title": "EWWW Image Optimizer \u003c 8.8.0 - Admin+ WebP File Rename and Deletion via Unrestricted Path in WebP Migration Handler",
          "x_generator": {
            "engine": "WPScan CVE Generator"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
        "assignerShortName": "WPScan",
        "cveId": "CVE-2026-91072",
        "datePublished": "2026-09-30T06:00:24.712Z",
        "dateReserved": "2026-09-14T17:15:38.777Z",
        "dateUpdated": "2026-09-30T13:37:22.035Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }

    CVE-2026-91051 (GCVE-0-2026-91051)

    Vulnerability from nvd – Published: 2026-09-30 06:00 – Updated: 2026-09-30 13:37
    VLAI
    Title
    EWWW Image Optimizer 8.6.0 - 8.7.7 - Author+ PHP Object Injection via 'eio_page_settings' Post Meta
    Summary
    The EWWW Image Optimizer WordPress plugin before 8.8.0 does not prevent authenticated users with author-level permissions from storing a serialized value in a post meta field that is deserialized when the post is rendered, allowing them to perform PHP Object Injection, which can lead to remote code execution when a suitable gadget chain is present via another installed EWWW Image Optimizer WordPress plugin before 8.8.0 or .
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-09-30 13:23 UTC
    CWE
    Assigner
    WPScan CNA under the mitre root
    CNA scorecard E 44/100 over 1603 records in the last 180 days details
    References
    URL Tags
    https://wpscan.com/vulnerability/e24a9497-8fb4-40… exploitvdb-entrytechnical-description
    Impacted products
    Vendor Product Version
    Unknown EWWW Image Optimizer Affected: 8.6.0 , < 8.8.0 (semver)
    Create a notification for this product.
    Show details on NVD website

    {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "cvssV3_1": {
                  "attackComplexity": "HIGH",
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                  "baseSeverity": "MEDIUM",
                  "confidentialityImpact": "HIGH",
                  "integrityImpact": "HIGH",
                  "privilegesRequired": "HIGH",
                  "scope": "UNCHANGED",
                  "userInteraction": "NONE",
                  "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
                  "version": "3.1"
                }
              },
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-91051",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-09-30T13:23:29.745094Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "problemTypes": [
              {
                "descriptions": [
                  {
                    "cweId": "CWE-502",
                    "description": "CWE-502 Deserialization of Untrusted Data",
                    "lang": "en",
                    "type": "CWE"
                  }
                ]
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-09-30T13:37:22.160Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "EWWW Image Optimizer",
              "vendor": "Unknown",
              "versions": [
                {
                  "lessThan": "8.8.0",
                  "status": "affected",
                  "version": "8.6.0",
                  "versionType": "semver"
                }
              ]
            }
          ],
          "credits": [
            {
              "lang": "en",
              "type": "finder",
              "value": "Karthik"
            },
            {
              "lang": "en",
              "type": "coordinator",
              "value": "WPScan"
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "The EWWW Image Optimizer WordPress plugin before 8.8.0 does not prevent authenticated users with author-level permissions from storing a serialized value in a post meta field that is deserialized when the post is rendered, allowing them to perform PHP Object Injection, which can lead to remote code execution when a suitable gadget chain is present via another installed EWWW Image Optimizer WordPress plugin before 8.8.0 or ."
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "description": "CWE-502 Deserialization of Untrusted Data",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-09-30T06:00:24.540Z",
            "orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
            "shortName": "WPScan"
          },
          "references": [
            {
              "tags": [
                "exploit",
                "vdb-entry",
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              ],
              "url": "https://wpscan.com/vulnerability/e24a9497-8fb4-4067-8421-194725455d55/"
            }
          ],
          "source": {
            "discovery": "EXTERNAL"
          },
          "title": "EWWW Image Optimizer 8.6.0 - 8.7.7 - Author+ PHP Object Injection via \u0027eio_page_settings\u0027 Post Meta",
          "x_generator": {
            "engine": "WPScan CVE Generator"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
        "assignerShortName": "WPScan",
        "cveId": "CVE-2026-91051",
        "datePublished": "2026-09-30T06:00:24.540Z",
        "dateReserved": "2026-09-14T17:15:20.460Z",
        "dateUpdated": "2026-09-30T13:37:22.160Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }

    CVE-2026-91011 (GCVE-0-2026-91011)

    Vulnerability from nvd – Published: 2026-09-17 06:00 – Updated: 2026-09-17 12:26
    VLAI
    Title
    EWWW Image Optimizer < 8.7.7 - Author+ Stored XSS via Image Class Attribute Backreference Expansion
    Summary
    The EWWW Image Optimizer WordPress plugin before 8.7.7 does not properly escape image attribute values when it rewrites page output, allowing authenticated users with author-level access and above to inject arbitrary JavaScript that is stored in published content and executes in the browser of any user who later views the affected page.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-09-17 12:10 UTC
    CWE
    Assigner
    WPScan CNA under the mitre root
    CNA scorecard E 44/100 over 1603 records in the last 180 days details
    References
    URL Tags
    https://wpscan.com/vulnerability/334f14d5-f97b-4e… exploitvdb-entrytechnical-description
    Impacted products
    Vendor Product Version
    Unknown EWWW Image Optimizer Affected: 0 , < 8.7.7 (semver)
    Create a notification for this product.
    Show details on NVD website

    {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "cvssV3_1": {
                  "attackComplexity": "LOW",
                  "attackVector": "NETWORK",
                  "availabilityImpact": "HIGH",
                  "baseScore": 6.8,
                  "baseSeverity": "MEDIUM",
                  "confidentialityImpact": "HIGH",
                  "integrityImpact": "HIGH",
                  "privilegesRequired": "HIGH",
                  "scope": "UNCHANGED",
                  "userInteraction": "REQUIRED",
                  "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H",
                  "version": "3.1"
                }
              },
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-91011",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-09-17T12:10:43.512611Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "problemTypes": [
              {
                "descriptions": [
                  {
                    "cweId": "CWE-79",
                    "description": "CWE-79 Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
                    "lang": "en",
                    "type": "CWE"
                  }
                ]
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-09-17T12:26:09.671Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
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          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "EWWW Image Optimizer",
              "vendor": "Unknown",
              "versions": [
                {
                  "lessThan": "8.7.7",
                  "status": "affected",
                  "version": "0",
                  "versionType": "semver"
                }
              ]
            }
          ],
          "credits": [
            {
              "lang": "en",
              "type": "finder",
              "value": "Artus KG"
            },
            {
              "lang": "en",
              "type": "coordinator",
              "value": "WPScan"
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "The EWWW Image Optimizer WordPress plugin before 8.7.7 does not properly escape image attribute values when it rewrites page output, allowing authenticated users with author-level access and above to inject arbitrary JavaScript that is stored in published content and executes in the browser of any user who later views the affected page."
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "description": "CWE-79 Cross-Site Scripting (XSS)",
                  "lang": "en",
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                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-09-17T06:00:13.250Z",
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            "shortName": "WPScan"
          },
          "references": [
            {
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                "exploit",
                "vdb-entry",
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              ],
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            }
          ],
          "source": {
            "discovery": "EXTERNAL"
          },
          "title": "EWWW Image Optimizer \u003c 8.7.7 - Author+ Stored XSS via Image Class Attribute Backreference Expansion",
          "x_generator": {
            "engine": "WPScan CVE Generator"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
        "assignerShortName": "WPScan",
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        "datePublished": "2026-09-17T06:00:13.250Z",
        "dateReserved": "2026-09-14T16:12:49.896Z",
        "dateUpdated": "2026-09-17T12:26:09.671Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }

    CVE-2026-91072 (GCVE-0-2026-91072)

    Vulnerability from cvelistv5 – Published: 2026-09-30 06:00 – Updated: 2026-09-30 13:37
    VLAI
    Title
    EWWW Image Optimizer < 8.8.0 - Admin+ WebP File Rename and Deletion via Unrestricted Path in WebP Migration Handler
    Summary
    The EWWW Image Optimizer WordPress plugin before 8.8.0 does not confine a WebP-derivative file migration routine to the current site's own uploads directory, letting an attacker with Administrator-level access rename or delete existing WebP-derivative image files outside that scope, including, on a multisite network, files belonging to a different site they have no access to.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-09-30 13:23 UTC
    CWE
    Assigner
    WPScan CNA under the mitre root
    CNA scorecard E 44/100 over 1603 records in the last 180 days details
    References
    URL Tags
    https://wpscan.com/vulnerability/c77770c5-d1af-47… exploitvdb-entrytechnical-description
    Impacted products
    Vendor Product Version
    Unknown EWWW Image Optimizer Affected: 0 , < 8.8.0 (semver)
    Create a notification for this product.
    Show details on NVD website

    {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "cvssV3_1": {
                  "attackComplexity": "HIGH",
                  "attackVector": "NETWORK",
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                  "baseScore": 4.4,
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                  "confidentialityImpact": "NONE",
                  "integrityImpact": "LOW",
                  "privilegesRequired": "HIGH",
                  "scope": "CHANGED",
                  "userInteraction": "NONE",
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                  "version": "3.1"
                }
              },
              {
                "other": {
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                      },
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                      }
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                    "role": "CISA Coordinator",
                    "timestamp": "2026-09-30T13:23:17.692335Z",
                    "version": "2.0.3"
                  },
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              }
            ],
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                    "cweId": "CWE-73",
                    "description": "CWE-73 External Control of File Name or Path",
                    "lang": "en",
                    "type": "CWE"
                  }
                ]
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            ],
            "providerMetadata": {
              "dateUpdated": "2026-09-30T13:37:22.035Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
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            {
              "defaultStatus": "unaffected",
              "product": "EWWW Image Optimizer",
              "vendor": "Unknown",
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                {
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                  "status": "affected",
                  "version": "0",
                  "versionType": "semver"
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          ],
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              "lang": "en",
              "type": "finder",
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            },
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            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "The EWWW Image Optimizer WordPress plugin before 8.8.0 does not confine a WebP-derivative file migration routine to the current site\u0027s own uploads directory, letting an attacker with Administrator-level access rename or delete existing WebP-derivative image files outside that scope, including, on a multisite network, files belonging to a different site they have no access to."
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "description": "CWE-73 External Control of File Name or Path",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-09-30T06:00:24.712Z",
            "orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
            "shortName": "WPScan"
          },
          "references": [
            {
              "tags": [
                "exploit",
                "vdb-entry",
                "technical-description"
              ],
              "url": "https://wpscan.com/vulnerability/c77770c5-d1af-47f6-9aee-a50d4a919732/"
            }
          ],
          "source": {
            "discovery": "EXTERNAL"
          },
          "title": "EWWW Image Optimizer \u003c 8.8.0 - Admin+ WebP File Rename and Deletion via Unrestricted Path in WebP Migration Handler",
          "x_generator": {
            "engine": "WPScan CVE Generator"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
        "assignerShortName": "WPScan",
        "cveId": "CVE-2026-91072",
        "datePublished": "2026-09-30T06:00:24.712Z",
        "dateReserved": "2026-09-14T17:15:38.777Z",
        "dateUpdated": "2026-09-30T13:37:22.035Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }

    CVE-2026-91051 (GCVE-0-2026-91051)

    Vulnerability from cvelistv5 – Published: 2026-09-30 06:00 – Updated: 2026-09-30 13:37
    VLAI
    Title
    EWWW Image Optimizer 8.6.0 - 8.7.7 - Author+ PHP Object Injection via 'eio_page_settings' Post Meta
    Summary
    The EWWW Image Optimizer WordPress plugin before 8.8.0 does not prevent authenticated users with author-level permissions from storing a serialized value in a post meta field that is deserialized when the post is rendered, allowing them to perform PHP Object Injection, which can lead to remote code execution when a suitable gadget chain is present via another installed EWWW Image Optimizer WordPress plugin before 8.8.0 or .
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-09-30 13:23 UTC
    CWE
    Assigner
    WPScan CNA under the mitre root
    CNA scorecard E 44/100 over 1603 records in the last 180 days details
    References
    URL Tags
    https://wpscan.com/vulnerability/e24a9497-8fb4-40… exploitvdb-entrytechnical-description
    Impacted products
    Vendor Product Version
    Unknown EWWW Image Optimizer Affected: 8.6.0 , < 8.8.0 (semver)
    Create a notification for this product.
    Show details on NVD website

    {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "cvssV3_1": {
                  "attackComplexity": "HIGH",
                  "attackVector": "NETWORK",
                  "availabilityImpact": "HIGH",
                  "baseScore": 6.6,
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    CVE-2026-91011 (GCVE-0-2026-91011)

    Vulnerability from cvelistv5 – Published: 2026-09-17 06:00 – Updated: 2026-09-17 12:26
    VLAI
    Title
    EWWW Image Optimizer < 8.7.7 - Author+ Stored XSS via Image Class Attribute Backreference Expansion
    Summary
    The EWWW Image Optimizer WordPress plugin before 8.7.7 does not properly escape image attribute values when it rewrites page output, allowing authenticated users with author-level access and above to inject arbitrary JavaScript that is stored in published content and executes in the browser of any user who later views the affected page.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-09-17 12:10 UTC
    CWE
    Assigner
    WPScan CNA under the mitre root
    CNA scorecard E 44/100 over 1603 records in the last 180 days details
    References
    URL Tags
    https://wpscan.com/vulnerability/334f14d5-f97b-4e… exploitvdb-entrytechnical-description
    Impacted products
    Vendor Product Version
    Unknown EWWW Image Optimizer Affected: 0 , < 8.7.7 (semver)
    Create a notification for this product.
    Show details on NVD website

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