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CVE-2026-46555

WhatsApp MCP Server is a Model Context Protocol (MCP) server for WhatsApp, enabling Claude to read and send WhatsApp messages. Prior to version 0.2.1, the `whatsapp-bridge` HTTP API listens on `127.0.0.1:8080` without authentication and without Host header validation, and the `/api/send` endpoint accepts an absolute `media_path` parameter without confining it to a safe directory. Combined, these issues allow any local process running as the same user as the bridge to send WhatsApp messages from
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:c9dcae60e27230cc0c4bdb4a696a3bcb910d8131100bd0cd5a90d0e9d4227580
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 3 assertions

{"cweId":"CWE-306","description":"CWE-306: Missing Authentication for Critical Function","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:640499dd5a542a8d3a5288e3c398738f26bbe95427ae6e8efd4c780612af997d · sha256:35d0f4541b224d6d… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-22","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:640499dd5a542a8d3a5288e3c398738f26bbe95427ae6e8efd4c780612af997d · sha256:35d0f4541b224d6d… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-346","description":"CWE-346: Origin Validation Error","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:640499dd5a542a8d3a5288e3c398738f26bbe95427ae6e8efd4c780612af997d · sha256:35d0f4541b224d6d… · /containers/cna/problemTypes/2/descriptions/0

Affected products and versions

1 source assertion
{"product":"whatsapp-mcp","vendor":"verygoodplugins","versions":[{"status":"affected","version":"< 0.2.1"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:640499dd5a542a8d3a5288e3c398738f26bbe95427ae6e8efd4c780612af997d · sha256:35d0f4541b224d6d… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"NONE","baseScore":7.7,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:640499dd5a542a8d3a5288e3c398738f26bbe95427ae6e8efd4c780612af997d · sha256:35d0f4541b224d6d… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

3 source assertions
{"cweId":"CWE-306","description":"CWE-306: Missing Authentication for Critical Function","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:640499dd5a542a8d3a5288e3c398738f26bbe95427ae6e8efd4c780612af997d · sha256:35d0f4541b224d6d… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-22","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:640499dd5a542a8d3a5288e3c398738f26bbe95427ae6e8efd4c780612af997d · sha256:35d0f4541b224d6d… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-346","description":"CWE-346: Origin Validation Error","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:640499dd5a542a8d3a5288e3c398738f26bbe95427ae6e8efd4c780612af997d · sha256:35d0f4541b224d6d… · /containers/cna/problemTypes/2/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/verygoodplugins/whatsapp-mcp/blob/main/SECURITY.md","tags":["x_refsource_MISC"],"url":"https://github.com/verygoodplugins/whatsapp-mcp/blob/main/SECURITY.md"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:640499dd5a542a8d3a5288e3c398738f26bbe95427ae6e8efd4c780612af997d · sha256:35d0f4541b224d6d… · /containers/cna/references/1
{"name":"https://github.com/verygoodplugins/whatsapp-mcp/releases/tag/v0.2.1","tags":["x_refsource_MISC"],"url":"https://github.com/verygoodplugins/whatsapp-mcp/releases/tag/v0.2.1"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:640499dd5a542a8d3a5288e3c398738f26bbe95427ae6e8efd4c780612af997d · sha256:35d0f4541b224d6d… · /containers/cna/references/2
{"name":"https://github.com/verygoodplugins/whatsapp-mcp/security/advisories/GHSA-7jj9-4qqq-4xc4","tags":["x_refsource_CONFIRM"],"url":"https://github.com/verygoodplugins/whatsapp-mcp/security/advisories/GHSA-7jj9-4qqq-4xc4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:640499dd5a542a8d3a5288e3c398738f26bbe95427ae6e8efd4c780612af997d · sha256:35d0f4541b224d6d… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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