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    2 vulnerabilities found for Dancer2::Plugin::Auth::OAuth::Provider by BIAFRA

    CVE-2026-12746 (GCVE-0-2026-12746)

    Vulnerability from nvd – Published: 2026-07-04 17:52 – Updated: 2026-07-06 14:56
    VLAI
    Title
    Dancer2::Plugin::Auth::OAuth::Provider versions before 0.23 for Perl do not support the OAuth 2.0 state parameter
    Summary
    Dancer2::Plugin::Auth::OAuth::Provider versions before 0.23 for Perl do not support the OAuth 2.0 state parameter. The authentication_url method builds the provider authorization redirect without issuing a state value, and the callback method exchanges the callback code and registers the resulting token into the session without verifying that the callback corresponds to an authorization request this session initiated. Any application that uses this plugin for OAuth 2.0 login is exposed to login cross-site request forgery: because the callback is not bound to the session that began the flow, an attacker who starts an authorization with their own provider account can deliver the resulting callback to a victim, causing the victim's session to complete the attacker's authorization and associating the attacker's provider identity and access token with that session. Where the application persists this as an account link, the attacker may retain access to the victim's account through their own provider credentials.
    Severity
    8.1 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-352 - Cross-Site Request Forgery (CSRF)
    Assigner
    References
    Impacted products
    Show details on NVD website
    To clipboard 

    {
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        "providerMetadata": {
          "dateUpdated": "2026-07-04T19:29:06.345Z",
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          {
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        ],
        "title": "CVE Program Container"
      },
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        "metrics": [
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            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 8.1,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N",
              "version": "3.1"
            }
          },
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            "other": {
              "content": {
                "id": "CVE-2026-12746",
                "options": [
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                  },
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                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-06T14:55:59.796200Z",
                "version": "2.0.3"
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        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-06T14:56:03.698Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
          "packageName": "Dancer2-Plugin-Auth-OAuth",
          "product": "Dancer2::Plugin::Auth::OAuth::Provider",
          "programFiles": [
            "lib/Dancer2/Plugin/Auth/OAuth/Provider.pm"
          ],
          "programRoutines": [
            {
              "name": "Dancer2::Plugin::Auth::OAuth::Provider::authentication_url"
            },
            {
              "name": "Dancer2::Plugin::Auth::OAuth::Provider::callback"
            }
          ],
          "repo": "https://github.com/biafra/perl-Dancer2-Plugin-Auth-OAuth",
          "vendor": "BIAFRA",
          "versions": [
            {
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              "status": "affected",
              "version": "0",
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      ],
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          "value": "Dancer2::Plugin::Auth::OAuth::Provider versions before 0.23 for Perl do not support the OAuth 2.0 state parameter.\n\nThe authentication_url method builds the provider authorization redirect without issuing a state value, and the callback method exchanges the callback code and registers the resulting token into the session without verifying that the callback corresponds to an authorization request this session initiated.\n\nAny application that uses this plugin for OAuth 2.0 login is exposed to login cross-site request forgery: because the callback is not bound to the session that began the flow, an attacker who starts an authorization with their own provider account can deliver the resulting callback to a victim, causing the victim\u0027s session to complete the attacker\u0027s authorization and associating the attacker\u0027s provider identity and access token with that session. Where the application persists this as an account link, the attacker may retain access to the victim\u0027s account through their own provider credentials."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-62",
          "descriptions": [
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              "lang": "en",
              "value": "CAPEC-62 Cross Site Request Forgery"
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      "references": [
        {
          "url": "https://metacpan.org/release/BIAFRA/Dancer2-Plugin-Auth-OAuth-0.23/diff/BIAFRA/Dancer2-Plugin-Auth-OAuth-0.22"
        },
        {
          "tags": [
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          "url": "https://github.com/biafra/perl-Dancer2-Plugin-Auth-OAuth/commit/806420fc2abbe13bede4461475f2f3dcd7daf5f2.patch"
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          "tags": [
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          "url": "https://datatracker.ietf.org/doc/html/rfc6749#section-10.12"
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      ],
      "solutions": [
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          "value": "Upgrade to version 0.23 or later."
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      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "timeline": [
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          "lang": "en",
          "time": "2026-06-22T00:00:00.000Z",
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    "datePublished": "2026-07-04T17:52:41.494Z",
    "dateReserved": "2026-06-19T17:42:35.807Z",
    "dateUpdated": "2026-07-06T14:56:03.698Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

    CVE-2026-12746 (GCVE-0-2026-12746)

    Vulnerability from cvelistv5 – Published: 2026-07-04 17:52 – Updated: 2026-07-06 14:56
    VLAI
    Title
    Dancer2::Plugin::Auth::OAuth::Provider versions before 0.23 for Perl do not support the OAuth 2.0 state parameter
    Summary
    Dancer2::Plugin::Auth::OAuth::Provider versions before 0.23 for Perl do not support the OAuth 2.0 state parameter. The authentication_url method builds the provider authorization redirect without issuing a state value, and the callback method exchanges the callback code and registers the resulting token into the session without verifying that the callback corresponds to an authorization request this session initiated. Any application that uses this plugin for OAuth 2.0 login is exposed to login cross-site request forgery: because the callback is not bound to the session that began the flow, an attacker who starts an authorization with their own provider account can deliver the resulting callback to a victim, causing the victim's session to complete the attacker's authorization and associating the attacker's provider identity and access token with that session. Where the application persists this as an account link, the attacker may retain access to the victim's account through their own provider credentials.
    Severity
    8.1 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-352 - Cross-Site Request Forgery (CSRF)
    Assigner
    References
    Impacted products
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2026-07-04T19:29:06.345Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2026/07/04/9"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
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              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 8.1,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "REQUIRED",
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              "version": "3.1"
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                  },
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                  }
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          "dateUpdated": "2026-07-06T14:56:03.698Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
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        {
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
          "packageName": "Dancer2-Plugin-Auth-OAuth",
          "product": "Dancer2::Plugin::Auth::OAuth::Provider",
          "programFiles": [
            "lib/Dancer2/Plugin/Auth/OAuth/Provider.pm"
          ],
          "programRoutines": [
            {
              "name": "Dancer2::Plugin::Auth::OAuth::Provider::authentication_url"
            },
            {
              "name": "Dancer2::Plugin::Auth::OAuth::Provider::callback"
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          ],
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      ],
      "impacts": [
        {
          "capecId": "CAPEC-62",
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              "lang": "en",
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