CVE-2026-111358 Details
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.
An authorization bypass vulnerability has been identified in SendPortal sendportal-core versions through 4.0.1. This vulnerability allows authenticated workspace members to attach subscribers to tags belonging to other workspaces by using unvalidated tag IDs. Attackers can exploit this issue by submitting sequential tag IDs through the web subscriber form or via CSV import. As a result, they can access victim campaign content and manipulate victim reports.
The vulnerability can be addressed by applying the existing 'CanAccessTag' validation rule to the 'tags' field in the 'SubscriberRequest' class, and by filtering tag IDs to ensure they belong to the current workspace before syncing them to a subscriber.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 15, 2026CISA-ADP
Assessed Oct 16, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-639 | Authorization Bypass Through User-Controlled Key | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| SendPortal | <= 4.0.1 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 16, 2026 | CVE Modified | CISA-ADP |
| Oct 15, 2026 | New CVE Received | [email protected] |