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Description

A vulnerability has been found in mettle sendportal up to 3.0.1. This issue affects the function sendgrid/postmark/postal/mailjet of the component APIv1 Webhooks. The manipulation leads to missing authentication. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

PUBLISHED Reserved 2026-07-09 | Published 2026-07-09 | Updated 2026-07-09 | Assigner VulDB




MEDIUM: 6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
MEDIUM: 6.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L/E:P/RL:X/RC:R
MEDIUM: 6.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L/E:P/RL:X/RC:R
6.4AV:N/AC:L/Au:N/C:N/I:P/A:P/E:POC/RL:ND/RC:UR

Problem types

Missing Authentication

Improper Authentication

Product status

3.0.0
affected

3.0.1
affected

Timeline

2026-07-09:Advisory disclosed
2026-07-09:VulDB entry created
2026-07-09:VulDB entry last update

Credits

Superman_04 (VulDB User) reporter

VulDB CNA Team coordinator

References

vuldb.com/vuln/377118 (VDB-377118 | mettle sendportal APIv1 Webhooks mailjet missing authentication) vdb-entry technical-description

vuldb.com/vuln/377118/cti (VDB-377118 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/cve/CVE-2026-15192 (CVE-2026-15192 | CVE Analysis and Report) third-party-advisory

vuldb.com/submit/851624 (Submit #851624 | Mettle sendportal Latest Improper Authentication) third-party-advisory

github.com/mettle/sendportal/issues/340 exploit issue-tracking

github.com/mettle/sendportal/ product

cve.org (CVE-2026-15192)

nvd.nist.gov (CVE-2026-15192)

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