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    4 vulnerabilities found for WP OAuth Server ( Login with WordPress ) by Unknown

    CVE-2026-82843 (GCVE-0-2026-82843)

    Vulnerability from nvd – Published: 2026-09-23 06:00 – Updated: 2026-09-23 10:58
    VLAI
    Title
    WP OAuth Server < 6.4.0 - Subscriber+ Cross-User Account Takeover via OIDC ID Token Substitution
    Summary
    The WP OAuth Server ( Login with WordPress ) WordPress plugin before 6.4.0 does not bind the OpenID Connect identity assertion it issues to the authorization grant being exchanged, returning instead the assertion belonging to whichever user authenticated most recently, which allows users with the Subscriber role and above to obtain a validly signed identity assertion for another user, including an administrator, and authenticate as them at any application that uses the site for single sign-on.
    Severity
    9 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-09-23 10:47 UTC
    CWE
    Assigner
    WPScan CNA under the mitre root
    CNA scorecard E 44/100 over 1647 records in the last 180 days details
    References
    URL Tags
    https://wpscan.com/vulnerability/45bc7096-5d04-4f… exploitvdb-entrytechnical-description
    Impacted products
    Credits
    vuxvinh WPScan
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 9,
              "baseSeverity": "CRITICAL",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "CHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-82843",
                "options": [
                  {
                    "Exploitation": "none"
                  },
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                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-23T10:47:10.118793Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-287",
                "description": "CWE-287 Improper Authentication",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-23T10:58:52.218Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "WP OAuth Server ( Login with WordPress )",
          "vendor": "Unknown",
          "versions": [
            {
              "lessThan": "6.4.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "vuxvinh"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "WPScan"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
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        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-287 Improper Authentication",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-23T06:00:16.102Z",
        "orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
        "shortName": "WPScan"
      },
      "references": [
        {
          "tags": [
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            "vdb-entry",
            "technical-description"
          ],
          "url": "https://wpscan.com/vulnerability/45bc7096-5d04-4fe6-a332-31aed507a3a0/"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "WP OAuth Server \u003c 6.4.0 - Subscriber+ Cross-User Account Takeover via OIDC ID Token Substitution",
      "x_generator": {
        "engine": "WPScan CVE Generator"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
    "assignerShortName": "WPScan",
    "cveId": "CVE-2026-82843",
    "datePublished": "2026-09-23T06:00:16.102Z",
    "dateReserved": "2026-08-31T08:27:13.691Z",
    "dateUpdated": "2026-09-23T10:58:52.218Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

    CVE-2026-19715 (GCVE-0-2026-19715)

    Vulnerability from nvd – Published: 2026-08-27 06:00 – Updated: 2026-08-27 14:23
    VLAI
    Title
    WP OAuth Server < 6.3.1 - Unauthenticated OAuth Token and User Data Disclosure via Debug Log File
    Summary
    The WP OAuth Server ( Login with WordPress ) WordPress plugin before 6.3.1 does not restrict access to the debug log it writes, which is stored at a fixed and publicly reachable location, allowing unauthenticated users to read the OAuth tokens and authorisation codes it has issued as well as user records including password hashes when debug logging is enabled.
    Severity
    7.5 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-08-27 14:19 UTC
    CWE
    Assigner
    WPScan CNA under the mitre root
    CNA scorecard E 44/100 over 1647 records in the last 180 days details
    References
    URL Tags
    https://wpscan.com/vulnerability/94987bd9-7ac2-44… exploitvdb-entrytechnical-description
    Impacted products
    Credits
    Farid Narimanov WPScan
    Show details on NVD website
    To clipboard 

    {
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    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-19715",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-27T14:19:06.746651Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-200",
                "description": "CWE-200 Exposure of Sensitive Information to an Unauthorized Actor",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-27T14:23:47.322Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "WP OAuth Server ( Login with WordPress )",
          "vendor": "Unknown",
          "versions": [
            {
              "lessThan": "6.3.1",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Farid Narimanov"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "WPScan"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
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        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-200 Information Exposure",
              "lang": "en",
              "type": "CWE"
            }
          ]
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-27T06:00:18.109Z",
        "orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
        "shortName": "WPScan"
      },
      "references": [
        {
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            "vdb-entry",
            "technical-description"
          ],
          "url": "https://wpscan.com/vulnerability/94987bd9-7ac2-44fd-93df-52892c2a4622/"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "WP OAuth Server \u003c 6.3.1 - Unauthenticated OAuth Token and User Data Disclosure via Debug Log File",
      "x_generator": {
        "engine": "WPScan CVE Generator"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
    "assignerShortName": "WPScan",
    "cveId": "CVE-2026-19715",
    "datePublished": "2026-08-27T06:00:18.109Z",
    "dateReserved": "2026-08-13T11:25:44.295Z",
    "dateUpdated": "2026-08-27T14:23:47.322Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

    CVE-2026-82843 (GCVE-0-2026-82843)

    Vulnerability from cvelistv5 – Published: 2026-09-23 06:00 – Updated: 2026-09-23 10:58
    VLAI
    Title
    WP OAuth Server < 6.4.0 - Subscriber+ Cross-User Account Takeover via OIDC ID Token Substitution
    Summary
    The WP OAuth Server ( Login with WordPress ) WordPress plugin before 6.4.0 does not bind the OpenID Connect identity assertion it issues to the authorization grant being exchanged, returning instead the assertion belonging to whichever user authenticated most recently, which allows users with the Subscriber role and above to obtain a validly signed identity assertion for another user, including an administrator, and authenticate as them at any application that uses the site for single sign-on.
    Severity
    9 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-09-23 10:47 UTC
    CWE
    Assigner
    WPScan CNA under the mitre root
    CNA scorecard E 44/100 over 1647 records in the last 180 days details
    References
    URL Tags
    https://wpscan.com/vulnerability/45bc7096-5d04-4f… exploitvdb-entrytechnical-description
    Impacted products
    Credits
    vuxvinh WPScan
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 9,
              "baseSeverity": "CRITICAL",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "CHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
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                  },
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                  },
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                "timestamp": "2026-09-23T10:47:10.118793Z",
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        ],
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                "description": "CWE-287 Improper Authentication",
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                "type": "CWE"
              }
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        "providerMetadata": {
          "dateUpdated": "2026-09-23T10:58:52.218Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "WP OAuth Server ( Login with WordPress )",
          "vendor": "Unknown",
          "versions": [
            {
              "lessThan": "6.4.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
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          "type": "finder",
          "value": "vuxvinh"
        },
        {
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          "type": "coordinator",
          "value": "WPScan"
        }
      ],
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        {
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        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
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      ],
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        "dateUpdated": "2026-09-23T06:00:16.102Z",
        "orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
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      ],
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        "discovery": "EXTERNAL"
      },
      "title": "WP OAuth Server \u003c 6.4.0 - Subscriber+ Cross-User Account Takeover via OIDC ID Token Substitution",
      "x_generator": {
        "engine": "WPScan CVE Generator"
      }
    }
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    "assignerShortName": "WPScan",
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    "dateReserved": "2026-08-31T08:27:13.691Z",
    "dateUpdated": "2026-09-23T10:58:52.218Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

    CVE-2026-19715 (GCVE-0-2026-19715)

    Vulnerability from cvelistv5 – Published: 2026-08-27 06:00 – Updated: 2026-08-27 14:23
    VLAI
    Title
    WP OAuth Server < 6.3.1 - Unauthenticated OAuth Token and User Data Disclosure via Debug Log File
    Summary
    The WP OAuth Server ( Login with WordPress ) WordPress plugin before 6.3.1 does not restrict access to the debug log it writes, which is stored at a fixed and publicly reachable location, allowing unauthenticated users to read the OAuth tokens and authorisation codes it has issued as well as user records including password hashes when debug logging is enabled.
    Severity
    7.5 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-08-27 14:19 UTC
    CWE
    Assigner
    WPScan CNA under the mitre root
    CNA scorecard E 44/100 over 1647 records in the last 180 days details
    References
    URL Tags
    https://wpscan.com/vulnerability/94987bd9-7ac2-44… exploitvdb-entrytechnical-description
    Impacted products
    Credits
    Farid Narimanov WPScan
    Show details on NVD website
    To clipboard 

    {
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      {
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          {
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              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
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              "baseScore": 7.5,
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              "confidentialityImpact": "HIGH",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
              "version": "3.1"
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                "options": [
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                "timestamp": "2026-08-27T14:19:06.746651Z",
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
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        {
          "defaultStatus": "unaffected",
          "product": "WP OAuth Server ( Login with WordPress )",
          "vendor": "Unknown",
          "versions": [
            {
              "lessThan": "6.3.1",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
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        }
      ],
      "problemTypes": [
        {
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            {
              "description": "CWE-200 Information Exposure",
              "lang": "en",
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      ],
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        "dateUpdated": "2026-08-27T06:00:18.109Z",
        "orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
        "shortName": "WPScan"
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            "vdb-entry",
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          ],
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        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "WP OAuth Server \u003c 6.3.1 - Unauthenticated OAuth Token and User Data Disclosure via Debug Log File",
      "x_generator": {
        "engine": "WPScan CVE Generator"
      }
    }
  },
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    "assignerShortName": "WPScan",
    "cveId": "CVE-2026-19715",
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    "dateReserved": "2026-08-13T11:25:44.295Z",
    "dateUpdated": "2026-08-27T14:23:47.322Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}