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    4 vulnerabilities found for OAuth Single Sign On by Unknown

    CVE-2026-82183 (GCVE-0-2026-82183)

    Vulnerability from nvd – Published: 2026-09-02 06:00 – Updated: 2026-09-02 12:26
    VLAI
    Title
    OAuth Single Sign On 6.25.0 - 7.0.0 - Unauthenticated Account Takeover via Unverified Steam OpenID Assertion
    Summary
    The OAuth Single Sign On WordPress plugin before 7.0.1 does not verify the identity assertion returned by its Steam single sign-on flow, allowing unauthenticated attackers to log in as an arbitrary non-administrator user, and to create new accounts.
    Severity
    8.1 (High)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-09-02 10:38 UTC
    CWE
    Assigner
    References
    URL Tags
    https://wpscan.com/vulnerability/bc7c18f2-4e8c-47… exploitvdb-entrytechnical-description
    Impacted products
    Vendor Product Version
    Unknown OAuth Single Sign On Affected: 6.25.0 , < 7.0.1 (semver)
    		Create a notification for this product.
    Credits
    Pedro Pinho WPScan
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "HIGH",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 8.1,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-82183",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-02T10:38:21.214427Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-287",
                "description": "CWE-287 Improper Authentication",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-02T12:26:36.799Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "OAuth Single Sign On",
          "vendor": "Unknown",
          "versions": [
            {
              "lessThan": "7.0.1",
              "status": "affected",
              "version": "6.25.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Pedro Pinho"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "WPScan"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The OAuth Single Sign On  WordPress plugin before 7.0.1 does not verify the identity assertion returned by its Steam single sign-on flow, allowing unauthenticated attackers to log in as an arbitrary non-administrator user, and to create new accounts."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-287 Improper Authentication",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-02T06:00:24.102Z",
        "orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
        "shortName": "WPScan"
      },
      "references": [
        {
          "tags": [
            "exploit",
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://wpscan.com/vulnerability/bc7c18f2-4e8c-47a3-a972-6162fd27aaca/"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "OAuth Single Sign On 6.25.0 - 7.0.0 - Unauthenticated Account Takeover via Unverified Steam OpenID Assertion",
      "x_generator": {
        "engine": "WPScan CVE Generator"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
    "assignerShortName": "WPScan",
    "cveId": "CVE-2026-82183",
    "datePublished": "2026-09-02T06:00:24.102Z",
    "dateReserved": "2026-08-28T07:39:02.672Z",
    "dateUpdated": "2026-09-02T12:26:36.799Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

    CVE-2023-1093 (GCVE-0-2023-1093)

    Vulnerability from nvd – Published: 2023-03-27 15:37 – Updated: 2025-02-19 20:16
    VLAI
    Title
    OAuth Single Sign On - SSO (OAuth Client) < 6.24.2 - IdP Discard via CSRF
    Summary
    The OAuth Single Sign On WordPress plugin before 6.24.2 does not have CSRF checks when discarding Identify providers (IdP), which could allow attackers to make logged in admins delete all IdP via a CSRF attack
    Severity
    6.5 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2025-02-19 20:16 UTC
    CWE
    Assigner
    References
    URL Tags
    https://wpscan.com/vulnerability/1e13b9ea-a3ef-48… exploitvdb-entrytechnical-description
    Impacted products
    Vendor Product Version
    Unknown OAuth Single Sign On Affected: 0 , < 6.24.2 (custom)
    		Create a notification for this product.
    Credits
    Erwan LR (WPScan) WPScan
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T05:32:46.344Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
          {
            "tags": [
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              "x_transferred"
            ],
            "url": "https://wpscan.com/vulnerability/1e13b9ea-a3ef-483b-b967-6ec14bd6d54d"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 6.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2023-1093",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-02-19T20:16:43.184400Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-02-19T20:16:48.586Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://wordpress.org/plugins",
          "defaultStatus": "unaffected",
          "product": "OAuth Single Sign On",
          "vendor": "Unknown",
          "versions": [
            {
              "lessThan": "6.24.2",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Erwan LR (WPScan)"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "WPScan"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The OAuth Single Sign On WordPress plugin before 6.24.2 does not have CSRF checks when discarding Identify providers (IdP), which could allow attackers to make logged in admins delete all IdP via a CSRF attack"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-352 Cross-Site Request Forgery (CSRF)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-03-27T15:37:22.994Z",
        "orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
        "shortName": "WPScan"
      },
      "references": [
        {
          "tags": [
            "exploit",
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://wpscan.com/vulnerability/1e13b9ea-a3ef-483b-b967-6ec14bd6d54d"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "OAuth Single Sign On - SSO (OAuth Client) \u003c 6.24.2 - IdP Discard via CSRF",
      "x_generator": {
        "engine": "WPScan CVE Generator"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
    "assignerShortName": "WPScan",
    "cveId": "CVE-2023-1093",
    "datePublished": "2023-03-27T15:37:22.994Z",
    "dateReserved": "2023-02-28T14:35:38.935Z",
    "dateUpdated": "2025-02-19T20:16:48.586Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

    CVE-2026-82183 (GCVE-0-2026-82183)

    Vulnerability from cvelistv5 – Published: 2026-09-02 06:00 – Updated: 2026-09-02 12:26
    VLAI
    Title
    OAuth Single Sign On 6.25.0 - 7.0.0 - Unauthenticated Account Takeover via Unverified Steam OpenID Assertion
    Summary
    The OAuth Single Sign On WordPress plugin before 7.0.1 does not verify the identity assertion returned by its Steam single sign-on flow, allowing unauthenticated attackers to log in as an arbitrary non-administrator user, and to create new accounts.
    Severity
    8.1 (High)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-09-02 10:38 UTC
    CWE
    Assigner
    References
    URL Tags
    https://wpscan.com/vulnerability/bc7c18f2-4e8c-47… exploitvdb-entrytechnical-description
    Impacted products
    Vendor Product Version
    Unknown OAuth Single Sign On Affected: 6.25.0 , < 7.0.1 (semver)
    		Create a notification for this product.
    Credits
    Pedro Pinho WPScan
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "HIGH",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 8.1,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-82183",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-02T10:38:21.214427Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-287",
                "description": "CWE-287 Improper Authentication",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-02T12:26:36.799Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "OAuth Single Sign On",
          "vendor": "Unknown",
          "versions": [
            {
              "lessThan": "7.0.1",
              "status": "affected",
              "version": "6.25.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Pedro Pinho"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "WPScan"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The OAuth Single Sign On  WordPress plugin before 7.0.1 does not verify the identity assertion returned by its Steam single sign-on flow, allowing unauthenticated attackers to log in as an arbitrary non-administrator user, and to create new accounts."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-287 Improper Authentication",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-02T06:00:24.102Z",
        "orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
        "shortName": "WPScan"
      },
      "references": [
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        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "OAuth Single Sign On 6.25.0 - 7.0.0 - Unauthenticated Account Takeover via Unverified Steam OpenID Assertion",
      "x_generator": {
        "engine": "WPScan CVE Generator"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
    "assignerShortName": "WPScan",
    "cveId": "CVE-2026-82183",
    "datePublished": "2026-09-02T06:00:24.102Z",
    "dateReserved": "2026-08-28T07:39:02.672Z",
    "dateUpdated": "2026-09-02T12:26:36.799Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

    CVE-2023-1093 (GCVE-0-2023-1093)

    Vulnerability from cvelistv5 – Published: 2023-03-27 15:37 – Updated: 2025-02-19 20:16
    VLAI
    Title
    OAuth Single Sign On - SSO (OAuth Client) < 6.24.2 - IdP Discard via CSRF
    Summary
    The OAuth Single Sign On WordPress plugin before 6.24.2 does not have CSRF checks when discarding Identify providers (IdP), which could allow attackers to make logged in admins delete all IdP via a CSRF attack
    Severity
    6.5 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2025-02-19 20:16 UTC
    CWE
    Assigner
    References
    URL Tags
    https://wpscan.com/vulnerability/1e13b9ea-a3ef-48… exploitvdb-entrytechnical-description
    Impacted products
    Vendor Product Version
    Unknown OAuth Single Sign On Affected: 0 , < 6.24.2 (custom)
    		Create a notification for this product.
    Credits
    Erwan LR (WPScan) WPScan
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T05:32:46.344Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 6.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2023-1093",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
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                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-02-19T20:16:43.184400Z",
                "version": "2.0.3"
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        "providerMetadata": {
          "dateUpdated": "2025-02-19T20:16:48.586Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://wordpress.org/plugins",
          "defaultStatus": "unaffected",
          "product": "OAuth Single Sign On",
          "vendor": "Unknown",
          "versions": [
            {
              "lessThan": "6.24.2",
              "status": "affected",
              "version": "0",
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      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Erwan LR (WPScan)"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "WPScan"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The OAuth Single Sign On WordPress plugin before 6.24.2 does not have CSRF checks when discarding Identify providers (IdP), which could allow attackers to make logged in admins delete all IdP via a CSRF attack"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-352 Cross-Site Request Forgery (CSRF)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-03-27T15:37:22.994Z",
        "orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
        "shortName": "WPScan"
      },
      "references": [
        {
          "tags": [
            "exploit",
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          "url": "https://wpscan.com/vulnerability/1e13b9ea-a3ef-483b-b967-6ec14bd6d54d"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "OAuth Single Sign On - SSO (OAuth Client) \u003c 6.24.2 - IdP Discard via CSRF",
      "x_generator": {
        "engine": "WPScan CVE Generator"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
    "assignerShortName": "WPScan",
    "cveId": "CVE-2023-1093",
    "datePublished": "2023-03-27T15:37:22.994Z",
    "dateReserved": "2023-02-28T14:35:38.935Z",
    "dateUpdated": "2025-02-19T20:16:48.586Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}