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Vulnerabilities

Vulnerability · CVE-2026-111358

SendPortal sendportal-core through 4.0.1 contains an authorization bypass vulnerability that allows authenticated workspace members to attach subscribers to other work…

Published Oct 15, 2026 · catalog updated Oct 15, 2026 · the affected product

Check if you run it

No confirmed exploitation is on record for CVE-2026-111358. EPSS is 0.26%. Act only if a listed version of the affected product is installed.

Gaps on this record

  • No plain product name is stored. The page cannot tell you which product to check.
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium5.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.26%
Remediation
Not established
Affected products
See sources for product scope

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.

No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.

How to fix CVE-2026-111358

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-111358. EPSS is 0.26%. Act only if a listed version of the affected product is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-639: Authorization Bypass Through User-Controlled Key. EPSS 0.26%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 15, 2026 · NIST NVD

    Detected

    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.

Sources

  • CVE.orgVulnerability recordCVE-2026-111358

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-111358

    30-day exploitation probability 0.3%

    first.org
  • NIST NVDVulnerability recordCVE-2026-111358

    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 for

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.