CVE-2024-45607

whatsapp-api-js fails to validate message's signature

5.8 MediumFix available

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: Low
Availability: None

Exploit likelihood

14.5%Up 14.4 points since Sep 13, 2024

What each source reports

CVE List Score used5.8

whatsapp-api-js fails to validate message's signature

Record: CVE-2024-45607
CVSS 3.1: 5.8 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
Weakness: CWE-347
Updated: 2026-11-02

EUVDEUVD-2024-28395.8

Record: EUVD-2024-2839
CVSS 3.1: 5.8 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
Updated: 2026-11-03

GitHub AdvisoriesGHSA-mwhf-vhr5-7j235.3

whatsapp-api-js fails to validate message's signature

Impact

Incorrect Access Control, anyone using the post or verifyRequestSignature methods to handle messages is impacted.

Patches

Patched in version 4.0.3.

Workarounds

It's possible to check the payload validation using the WhatsAppAPI.verifyRequestSignature and expect false when the signature is valid.

function doPost(payload, header_signature) {
    if (whatsapp.verifyRequestSignature(payload.toString(), header_signature) {
        throw 403;
    }
    
    // Now the payload is correctly verified
    whatsapp.post(payload);
}

References

https://github.com/Secreto31126/whatsapp-api-js/pull/371

Record: GHSA-mwhf-vhr5-7j23
CVSS 4.0: 5.3 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N
CVSS 3.1: 5.8 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
Weakness: CWE-347
Updated: 2026-11-02

NVD5.8

Record: CVE-2024-45607
CVSS 3.1: 5.8 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness: CWE-347
Updated: 2026-11-02

OSV5.8

whatsapp-api-js fails to validate message's signature

Record: CVE-2024-45607
CVSS 3.1: 5.8 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
Weakness: CWE-347
Updated: 2026-11-02

OSVGHSA-mwhf-vhr5-7j235.3

whatsapp-api-js fails to validate message's signature

Impact

Incorrect Access Control, anyone using the post or verifyRequestSignature methods to handle messages is impacted.

Patches

Patched in version 4.0.3.

Workarounds

It's possible to check the payload validation using the WhatsAppAPI.verifyRequestSignature and expect false when the signature is valid.

function doPost(payload, header_signature) {
    if (whatsapp.verifyRequestSignature(payload.toString(), header_signature) {
        throw 403;
    }
    
    // Now the payload is correctly verified
    whatsapp.post(payload);
}

References

https://github.com/Secreto31126/whatsapp-api-js/pull/371

Record: GHSA-mwhf-vhr5-7j23
CVSS 4.0: 5.3 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N
CVSS 3.1: 5.8 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
Weakness: CWE-347
Updated: 2026-11-02

Affected products

secreto31126 whatsapp-api-js

Affected packages

Affected packages
Package	Affected	Fixed
`whatsapp-api-js` npm	4.0.0 up to 4.0.3	4.0.3

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases, published	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2024-45607 is a medium vulnerability (CVSS 5.8) in Secreto31126 Whatsapp-api-js, published September 12, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 14.5%, the 96th percentile. Fixed in whatsapp-api-js 4.0.3.