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  "details": "The `actionSendActivationEmail()` endpoint is accessible to unauthenticated users and does not require a permission check for pending users. An attacker with no prior access can trigger activation emails for any pending user account by knowing or guessing the user ID. If the attacker controls the target user\u2019s email address, they can activate the account and gain access to the system.\n\nThe vulnerability is not that anonymous access exists - there\u2019s a legitimate use case for it. The vulnerability is that the endpoint accepts arbitrary `userId` parameters without verifying ownership.\n\nCraft CMS allows public user registration. When a user registers but doesn\u2019t receive their activation email (spam filter, typo correction, etc.), they need a way to request a resend. This is why `send-activation-email` is in the `allowAnonymous` array - it\u2019s intentional self-service functionality.\n\n### The Security Gap\n\nThe endpoint accepts `userId` as the identifier:\n```php\n$userId = $this-\u003erequest-\u003egetRequiredBodyParam(\u0027userId\u0027);\n```\n\nThis allows any visitor to trigger activation emails for any pending user, not just their own registration.\n\n---\n\n## Background\n\nWhen administrators create new user accounts in Craft CMS, users are created in a \u201cpending\u201d state until they activate their account via an emailed link. The `actionSendActivationEmail()` function sends (or resends) this activation email.\n\n**Expected Behavior:** Anonymous users should only be able to resend activation emails for their own registration.\n\n**Actual Behavior:**\n1. The endpoint is listed in `allowAnonymous` - no login required (intentional for self-service)\n2. For pending users, there is NO ownership verification\n3. Any unauthenticated visitor can trigger activation emails for ANY pending user by ID\n\n---\n\n## Attack Scenarios\n\n### Scenario 1: Targeted Account Takeover\n\n**Prerequisites:** Attacker controls target user\u2019s email (compromised email, shared mailbox, typosquatting, etc.)\n\n```\n1. Admin creates a user account for victim@company.com\n2. User account is in PENDING state (hasn\u2019t activated yet)\n3. Attacker has compromised victim@company.com (or it\u2019s a typo of attacker\u2019s domain)\n4. Attacker discovers user ID (brute-force, GraphQL enumeration, or insider knowledge)\n5. Attacker (unauthenticated) triggers: POST /actions/users/send-activation-email\n6. Activation email sent to victim@company.com (attacker-controlled)\n7. Attacker clicks activation link, sets password\n8. Attacker gains access as that user with pre-assigned permissions\n```\n\n### Scenario 2: User ID Brute-Force Enumeration\n\n```\n1. Attacker iterates through user IDs (1, 2, 3, ...)\n2. For each ID, the attacker calls send-activation-email\n3. Response reveals user state:\n   - \"Activation email sent.\" = Pending user exists\n   - \"User not found\" = No user with this ID\n   - \"Activation emails can only be sent to inactive or pending users\" = Active user exists\n4. Attacker builds a map of all user IDs and their states\n5. For any pending user whose email an attacker controls \u2192 account takeover\n```\n\n### Scenario 3: GraphQL + Targeted Attack\n\n**Prerequisites:** GraphQL public schema allows user queries\n\n```\n1. Attacker queries GraphQL: { users { id email status } }\n2. Filters for pending users\n3. Cross-references with emails attacker controls\n4. Triggers activation for the target user\n5. Account takeover\n```\n\n### Scenario 4: Email Spam / Harassment\n\n```\n1. Attacker brute-forces all pending user IDs\n2. Repeatedly triggers activation emails\n3. Victims receive unwanted emails from the Craft site\n4. Potential for:\n   - Reputation damage to the site\n   - Email deliverability issues (spam reports)\n   - User confusion/phishing vector\n```\n\n---\n\n## References\n\nhttps://github.com/craftcms/cms/commit/c3d02d4a7246f516933f42106c0a67ce062f68d8",
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  "details": "The Fluent Forms \u2013 Customizable Contact Forms, Survey, Quiz, \u0026 Conversational Form Builder plugin for WordPress is vulnerable to Insecure Direct Object Reference via the \u0027submission_id\u0027 parameter in versions up to, and including, 6.1.21. This is due to missing authorization and ownership validation on a user controlled key in the Stripe SCA confirmation AJAX endpoint. This makes it possible for unauthenticated attackers to modify payment status of targeted pending submissions (for example, setting the status to \"failed\").",
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    "severity": "HIGH"
  },
  "details": "Crabbox prior to v0.12.0 contains a privilege escalation vulnerability that allows users with shared visibility-only access to obtain Code, WebVNC, and Egress agent tickets by sending POST requests to ticket endpoints. Attackers can exploit insufficient access control checks on the /v1/leases/:id/code/ticket, /v1/leases/:id/webvnc/ticket, and /v1/leases/:id/egress/ticket endpoints to obtain bridge-agent tickets and impersonate trusted lease-side bridges despite having only visibility permissions.",
  "id": "GHSA-23m9-rr4p-xpwh",
  "modified": "2026-05-14T21:30:47Z",
  "published": "2026-05-14T21:30:47Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-8629"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/crabbox/pull/71"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/crabbox/commit/95cb30dc7dbaa1fef690a42ef6ac1cb6e307a191"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/crabbox/releases/tag/v0.12.0"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/crabbox-privilege-escalation-via-agent-ticket-endpoints"
    }
  ],
  "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:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/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"
    }
  ]
}