CWE-639

{
  "affected": [],
  "aliases": [
    "CVE-2026-3688"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-639"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-08T12:17:20Z",
    "severity": "HIGH"
  },
  "details": "The WCFM Membership \u2013 WooCommerce Memberships for Multivendor Marketplace plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 2.11.10. This is due to the \u0027wcfmvm_membership_change\u0027 AJAX action not validating user permission to modify other users. This makes it possible for authenticated attackers, with vendor level access and above, to change any user\u0027s role to \u0027wcfm_vendor\u0027 by changing their membership plan.",
  "id": "GHSA-2jfc-5xjv-8mv7",
  "modified": "2026-07-08T12:30:24Z",
  "published": "2026-07-08T12:30:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-3688"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/changeset/3520777/wc-multivendor-membership"
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/8a934ccd-9330-4585-9994-838940d24980?source=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

{
  "affected": [],
  "aliases": [
    "CVE-2026-100609"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-639"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-26T14:16:41Z",
    "severity": "HIGH"
  },
  "details": "Flowise (npm packages `flowise` and `flowise-components`) through 3.1.4 looks up credentials by ID without filtering on the requesting user\u0027s workspace (findOneBy({ id: credentialId }) with no workspaceId condition) in several code paths: getAllOpenaiAssistants/getSingleOpenaiAssistant (GET /api/v1/openai-assistants and /api/v1/openai-assistants/:id), uploadFilesToAssistant (POST /api/v1/openai-assistants-file/upload/), deleteAssistant (DELETE /api/v1/assistants/:id, reachable by first importing a poisoned assistant row via POST /api/v1/export-import/import), and the shared helper used by getVoices (GET /api/v1/text-to-speech/voices). An authenticated user of one workspace can supply a credential UUID belonging to another workspace, causing the server to decrypt and use that workspace\u0027s OpenAI or ElevenLabs API key on the attacker\u0027s behalf. No patched version was available at the time of publication.",
  "id": "GHSA-2jfx-whrm-9j49",
  "modified": "2026-09-26T15:31:14Z",
  "published": "2026-09-26T15:31:14Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-27w2-26m5-x82c"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-100609"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/flowise-through-3.1.4-insecure-direct-object-reference-via-credential"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

{
  "affected": [],
  "aliases": [
    "CVE-2026-3235"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-639"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-26T11:16:38Z",
    "severity": "MODERATE"
  },
  "details": "The WP Data Access plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 5.5.68 via the \u0027check_app_access\u0027 function due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to access data from protected app containers by exploiting a mismatch between the authorization check (performed against app_id) and data retrieval (performed using cnt_id without verifying container ownership).",
  "id": "GHSA-2jg8-822h-797w",
  "modified": "2026-08-26T18:31:54Z",
  "published": "2026-08-26T18:31:54Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-3235"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/wp-data-access/trunk/WPDataAccess/API/WPDA_Apps.php#L2387"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/wp-data-access/trunk/WPDataAccess/API/WPDA_Apps.php#L2400"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/wp-data-access/trunk/WPDataAccess/Plugin_Table_Models/WPDA_App_Container_Model.php#L50"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/changeset/3477673"
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/935f5d76-d63a-4db4-b645-b7961ae8bfaf?source=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

{
  "affected": [],
  "aliases": [
    "CVE-2026-100679"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-639"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-26T14:16:51Z",
    "severity": "HIGH"
  },
  "details": "stoatchat before 0.15.5 fails to validate that MFA tickets belong to the authenticated user, allowing attackers to bypass MFA by using their own valid ticket with another user\u0027s session token. Attackers can obtain a ticket from their own account and use it with a victim\u0027s session token to disable TOTP, view recovery codes, or perform other sensitive operations without providing the victim\u0027s credentials.",
  "id": "GHSA-2jwx-p7f6-684c",
  "modified": "2026-09-26T15:31:20Z",
  "published": "2026-09-26T15:31:20Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/stoatchat/stoatchat/security/advisories/GHSA-gwg6-q3c3-97cx"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-100679"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/stoatchat-before-0.15.5-mfa-bypass-via-cross-account-ticket"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

{
  "affected": [],
  "aliases": [
    "CVE-2025-3519"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-639"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-04-22T09:15:15Z",
    "severity": "HIGH"
  },
  "details": "An authorization bypass\u00a0in\u00a0Unblu Spark allows a\u00a0participant of a conversation\u00a0to replace an existing, uploaded file.\n\nEvery uploaded file in Unblu gets assigned with a randomly generated Universally Unique ID (UUID). In case a participant of this or another conversation gets access to such a file ID, it can be used to replace the file without changing the file name and details or the name of the user who uploaded the file. During the upload, file interception and allowed file type rules are still applied correctly.",
  "id": "GHSA-2m3f-82cc-h56x",
  "modified": "2025-04-22T09:30:35Z",
  "published": "2025-04-22T09:30:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-3519"
    },
    {
      "type": "WEB",
      "url": "https://www.unblu.com/en/docs/latest/security-bulletins/#UBL-2025-001"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "gitea.dev"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.26.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-28740"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-639",
      "CWE-863"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-21T20:29:43Z",
    "nvd_published_at": "2026-07-03T21:16:59Z",
    "severity": "HIGH"
  },
  "details": "## Summary\n\nA user with Code write access to one repository may be able to associate an existing Git LFS object from a private source repository with their target repository, even when they do not have Code access to the source repository that currently owns the LFS object.\n\nThe issue appears to be caused by the source-object authorization check using broad repository accessibility instead of requiring Code-unit access to at least one repository that owns the requested LFS object.\n\n## Impact\n\nThis issue breaks the expected authorization boundary between repository units.\n\nA user who does not have Code access to a private source repository should not be able to reuse or associate Git LFS objects owned by that repository. However, because the source-object accessibility check accepts broad repository access, non-Code access such as Issues access may be sufficient for the LFS object to be treated as accessible.\n\nIf the reused object becomes downloadable through the attacker-controlled target repository after metadata association, this can result in cross-repository Git LFS content disclosure.\n\nThe target repository write authorization is still enforced. The problem is specifically in the authorization decision for whether the source LFS object is accessible and may be reused.\n\n## Preconditions\n\nThe attacker needs:\n\n* an authenticated Gitea account;\n* Code write access to a target repository;\n* non-Code access, such as Issues access, to a private source repository;\n* knowledge of an existing Git LFS object OID and size from the private source repository.\n\n## Affected Area\n\nThe issue affects the Git LFS upload/object reuse path.\n\nRelevant paths:\n\n```text\nservices/lfs/server.go\n```\n\nRelevant handlers:\n\n```text\nBatchHandler\nUploadHandler\n```\n\nBoth paths can call:\n\n```go\ngit_model.LFSObjectAccessible(ctx, ctx.Doer, p.Oid)\n```\n\nThe helper is located in:\n\n```text\nmodels/git/lfs.go\n```\n\nThe authorization check uses:\n\n```go\nrepo_model.AccessibleRepositoryCondition(user, unit.TypeInvalid)\n```\n\nWhen `unit.TypeInvalid` is used, the repository access condition can include broad repository access, such as organization team membership through `team_repo` and `team_user`, without requiring that the user has access to the Code unit of the source repository.\n\nBy contrast, Code-specific repository access checks use a concrete unit type and include `team_unit` validation.\n\n## Validation\n\nI reproduced this locally using Gitea\u0027s Go test harness.\n\nValidated against commit:\n\n```text\ndac41a124fd34820a3c8caf3b3592ba62cd514ff\n```\n\nThe PoC creates the following scenario:\n\n1. The attacker has Code write access to the target repository.\n2. The source repository is private.\n3. The attacker does not have Code access to the source repository.\n4. The attacker only has Issues access to the source repository through an organization team.\n5. An LFS object exists in the source repository.\n6. `LFSObjectAccessible(ctx, attacker, oid)` returns `true`.\n7. `NewLFSMetaObject(ctx, targetRepo.ID, pointer)` successfully creates LFS metadata for the target repository.\n\nTest result:\n\n```text\n=== RUN   TestLFSObjectAccessibleAllowsNonCodeSourceAccess\n--- PASS: TestLFSObjectAccessibleAllowsNonCodeSourceAccess\nPASS\nok  \tgitea.dev/models/git\n```\n\nNo live instance was tested. Validation was performed only against a local test database.\n\n## Security Expectation\n\nA user should not be allowed to reuse or associate an LFS object from a private source repository unless they have Code access to that source repository, or another permission level explicitly intended to grant access to repository file contents.\n\nNon-Code permissions such as Issues access should not authorize access to Git LFS object content or allow Git LFS object reuse.\n\n## Suggested Fix\n\n`LFSObjectAccessible` should require Code-unit access to at least one repository that owns the requested LFS object.\n\nThe check should avoid using `unit.TypeInvalid` for this source-object authorization decision. A Code-specific repository access condition should be used instead.\n\nA regression test should cover:\n\n* private source repository;\n* user has Issues-only access to the source repository;\n* user does not have Code access to the source repository;\n* user has Code write access to the target repository;\n* known LFS object exists in the source repository;\n* object reuse must be rejected unless the user has Code access to the source repository.\n\n## Suggested Severity\n\nSuggested severity: Medium to High.\n\nThe severity depends on whether the associated LFS object becomes downloadable through the target repository after reuse.\n\nIf the object becomes downloadable through the target repository, the issue should be considered High because it can lead to cross-repository Git LFS content disclosure.\n\nSuggested CVSS v3.1 if content disclosure is confirmed:\n\n```text\nCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N\n```\n\nRationale:\n\n* network reachable through Git LFS endpoints;\n* requires authentication;\n* requires knowledge of the LFS object OID and size;\n* no user interaction required;\n* breaks repository-level authorization expectations;\n* primary impact is confidentiality of private Git LFS content;\n* limited integrity impact through unauthorized LFS metadata association in the target repository.\n\n## Evidence\n\nI can provide the local regression test and passing test log privately if needed.",
  "id": "GHSA-2m9v-5q2g-58vq",
  "modified": "2026-07-21T20:29:43Z",
  "published": "2026-07-21T20:29:43Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/go-gitea/gitea/security/advisories/GHSA-2m9v-5q2g-58vq"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-28740"
    },
    {
      "type": "WEB",
      "url": "https://github.com/go-gitea/gitea/pull/38050"
    },
    {
      "type": "WEB",
      "url": "https://github.com/go-gitea/gitea/commit/1c7b7ea72df7cf81e88b8e09049608254d32e56e"
    },
    {
      "type": "WEB",
      "url": "https://github.com/go-gitea/gitea/commit/7b4a1a1a118501b9d0260301dfed7f52dfc36ee9"
    },
    {
      "type": "WEB",
      "url": "https://blog.gitea.com/release-of-1.26.3-and-1.26.4"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/go-gitea/gitea"
    },
    {
      "type": "WEB",
      "url": "https://github.com/go-gitea/gitea/releases/tag/v1.26.3"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Gitea: Git LFS object reuse allows non-Code access to authorize private source objects"
}

{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.springframework.cloud:spring-cloud-config-server"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.1.0"
            },
            {
              "last_affected": "3.1.13"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.springframework.cloud:spring-cloud-config-server"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.1.0"
            },
            {
              "last_affected": "4.1.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.springframework.cloud:spring-cloud-config-server"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.2.0"
            },
            {
              "last_affected": "4.2.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 4.3.2"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.springframework.cloud:spring-cloud-config-server"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.3.0"
            },
            {
              "fixed": "4.3.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 5.0.2"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.springframework.cloud:spring-cloud-config-server"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.0.0"
            },
            {
              "fixed": "5.0.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-40981"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-639"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-05-11T16:19:03Z",
    "nvd_published_at": "2026-05-07T04:16:24Z",
    "severity": "HIGH"
  },
  "details": "When using Google Secrets Manager as a backend for the Spring Cloud Config server a client can craft a request to the config server potentially exposing secrets from unintended GCP projects.\nSpring Cloud Config 3.1.x: affected from 3.1.0 through 3.1.13 (inclusive); upgrade to 3.1.14 or greater (Enterprise Support Only). Spring Cloud Config 4.1.x: affected from 4.1.0 through 4.1.9 (inclusive); upgrade to 4.1.10 or greater (Enterprise Support Only). Spring Cloud Config 4.2.x: affected from 4.2.0 through 4.2.6 (inclusive); upgrade to 4.2.7 or greater (Enterprise Support Only). Spring Cloud Config 4.3.x: affected from 4.3.0 through 4.3.2 (inclusive); upgrade to 4.3.3 or greater. Spring Cloud Config 5.0.x: affected from 5.0.0 through 5.0.2 (inclusive); upgrade to 5.0.3 or greater.",
  "id": "GHSA-2mh5-3cw6-hrrq",
  "modified": "2026-06-11T14:48:18Z",
  "published": "2026-05-07T06:31:41Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-40981"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/spring-cloud/spring-cloud-config"
    },
    {
      "type": "WEB",
      "url": "https://spring.io/security/cve-2026-40981"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Spring Cloud Config has an Authorization Bypass Through User-Controlled Key "
}

{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "joedolson/my-calendar"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.7.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-40308"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-639"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-04-16T21:34:40Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "### Summary\n\nAn unauthenticated Insecure Direct Object Reference (IDOR) and Denial of Service (DoS) vulnerability in the My Calendar plugin allows any unauthenticated user to extract calendar events (including private or hidden ones) from any sub-site on a WordPress Multisite network. On standard Single Site WordPress installations, this same endpoint crashes the PHP worker thread, creating an unauthenticated Denial of Service (DoS) vector.\n\n### Details\n\nThe vulnerability stems from the `mc_ajax_mcjs_action AJAX` function, which handles the `mcjs_action` endpoint. This endpoint is explicitly registered for unauthenticated users:\n```php\n\u003c?php\n// In my-calendar-ajax.php\nadd_action( \u0027wp_ajax_nopriv_mcjs_action\u0027, \u0027mc_ajax_mcjs_action\u0027 );\n```\n\nWhen the behavior parameter is set to loadupcoming, the plugin accepts an args parameter from the $_REQUEST array. Instead of validating specific expected arguments, the plugin unsafely passes the entire string into PHP\u0027s parse_str() function:\n```php\n\u003c?php\n$request = isset( $_REQUEST[\u0027args\u0027] ) ? wp_unslash( sanitize_text_field( $_REQUEST[\u0027args\u0027] ) ) : array();\n$request = str_replace( \u0027|\u0027, \u0027\u0026\u0027, $request );\n$request = parse_str( $request, $args );\n// ...\n$response = my_calendar_upcoming_events( $args );\n```\n\nThis allows an attacker to inject arbitrary key-value pairs into the $args array. This array is then passed to the my_calendar_upcoming_events() function located in my-calendar-widgets.php.\n\nAt the beginning of this function, the plugin processes the attacker-controlled site argument:\n```php\n\u003c?php\n// In my-calendar-widgets.php\nif ( $args[\u0027site\u0027] ) {\n    $args[\u0027site\u0027] = ( \u0027global\u0027 === $args[\u0027site\u0027] ) ? BLOG_ID_CURRENT_SITE : $args[\u0027site\u0027];\n    switch_to_blog( $args[\u0027site\u0027] );\n}\n```\nThe plugin blindly passes the attacker\u0027s supplied site ID into WordPress core\u0027s `switch_to_blog()` function without checking if the requesting user has the appropriate network-level privileges (e.g., Super Admin).\n\nOn Multisite configurations, the database context switches to the targeted sub-site, queries its events, and returns the HTML-rendered events array in the JSON response, leading to Information Disclosure across tenant boundaries.\nOn Single Site configurations, the switch_to_blog() function does not exist in WordPress core. Calling it triggers an Uncaught PHP Error (Call to undefined function switch_to_blog()), resulting in a 500 Internal Server error (\"Critical Error\"). Repeated requests to this unauthenticated endpoint easily exhaust server resources.\n\n### PoC\n\n## 1. Multisite Information Disclosure - IDOR\n```\ncurl -s \"http://\u003ctarget-domain\u003e/wp-admin/admin-ajax.php?action=mcjs_action\u0026behavior=loadupcoming\u0026args=site=2\"\n```\n\n## 2.  Single Site Denial of Service (DoS)\nIf the WordPress instance is not a Multisite, passing any truthy value to the site parameter will instantly crash the request thread:\n```\ncurl -i -s \"http://\u003ctarget-domain\u003e/wp-admin/admin-ajax.php?action=mcjs_action\u0026behavior=loadupcoming\u0026args=site=1\"\n```\n\n### Impact\n\n**Vulnerability Type**: Insecure Direct Object Reference (IDOR) / Information Exposure / Denial of Service (DoS)\n**Who is impacted**: All sites running the \"My Calendar\" plugin.\n\nAnonymous internet users can silently map the network and extract private, unpublished, or intranet-specific events from unlaunched/internal sub-sites.\nStandard Single Site users are vulnerable to an easy-to-execute application-layer DoS, as it costs an attacker negligible resources to constantly crash PHP worker threads at an unauthenticated endpoint.",
  "id": "GHSA-2mvx-f5qm-v2ch",
  "modified": "2026-04-16T21:34:40Z",
  "published": "2026-04-16T21:34:40Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/joedolson/my-calendar/security/advisories/GHSA-2mvx-f5qm-v2ch"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/joedolson/my-calendar"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Unauthenticated Information Disclosure (IDOR) via Multisite switch_to_blog in My Calendar"
}

{
  "affected": [],
  "aliases": [
    "CVE-2026-82280"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-639"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-28T20:20:19Z",
    "severity": "HIGH"
  },
  "details": "Quivr through 0.0.322 fails to validate ownership in prompt endpoints, allowing authenticated users to modify any prompt by identifier. Attackers with read-only access to shared brains can read exposed prompt identifiers and overwrite system prompts affecting all brain users.",
  "id": "GHSA-2mxf-m4gh-hj3g",
  "modified": "2026-08-31T21:31:59Z",
  "published": "2026-08-28T21:31:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-82280"
    },
    {
      "type": "WEB",
      "url": "https://github.com/QuivrHQ/quivr/issues/3698"
    },
    {
      "type": "WEB",
      "url": "https://github.com/The-Vibe-Company/Quivr/issues/3698"
    },
    {
      "type": "WEB",
      "url": "https://github.com/QuivrHQ/quivr"
    },
    {
      "type": "WEB",
      "url": "https://github.com/QuivrHQ/quivr/blob/v0.0.322/backend/api/quivr_api/modules/prompt/controller/prompt_routes.py"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/quivr-prompt-endpoints-missing-ownership-validation"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

{
  "affected": [],
  "aliases": [
    "CVE-2022-3995"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-639"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-11-29T21:15:00Z",
    "severity": "MODERATE"
  },
  "details": "The TeraWallet plugin for WordPress is vulnerable to Insecure Direct Object Reference in versions up to, and including, 1.4.3. This is due to insufficient validation of the user-controlled key on the lock_unlock_terawallet AJAX action. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to lock/unlock other users wallets.",
  "id": "GHSA-2p29-98c8-mc4x",
  "modified": "2026-04-08T21:31:45Z",
  "published": "2022-11-29T21:30:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-3995"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/changeset/2817824/woo-wallet/trunk?contextall=1\u0026old=2816610\u0026old_path=%2Fwoo-wallet%2Ftrunk"
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/ec57e0b2-61b0-4b67-9784-dbb4e6c4e4a6?source=cve"
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/vulnerability-advisories-continued/#CVE-2022-3995"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}