CVE-2026-111358

Medium

Description

SendPortal sendportal-core through 4.0.1 contains an authorization bypass vulnerability that allows authenticated workspace members to attach subscribers to other workspaces' tags by supplying unvalidated tag IDs. Attackers can submit sequential tag IDs via the web subscriber form or CSV import to receive victim campaign content and skew victim reports.

SeverityMedium

CVSS5.4

Exploit probability—

ProductMettle Sendportal-core

PublishedOct 15, 2026

First seenOct 15, 2026

Weakness typeCWE-639Authorization bypass through user-controlled key

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

Product	Affected versions	Fixed in
mettle sendportal-core	v ≤ 4.0.1	—

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