Description
An Open Redirect vulnerability exists in the public form submission endpoint (/form/submit) of Mautic. After a form is submitted, the application redirects the visitor to a return address supplied with the submission without verifying that it points to the Mautic instance or another trusted host. An unauthenticated attacker can exploit this to send visitors from a legitimate Mautic domain to an arbitrary external website, for example to phishing pages that imitate the original landing page or to sites that deliver malware. Any Mautic instance with a published form is affected. Exploitation requires the victim to submit a form prepared by the attacker.
Published: 2026-10-26
Score: 5.4 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

Vendor Workaround

There are no official workarounds. To mitigate this vulnerability without upgrading, configure a reverse proxy or web application firewall rule that blocks redirect responses from /form/submit to hosts other than your Mautic instance and your own websites.

Tracking

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Advisories

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History

Mon, 26 Oct 2026 16:30:00 +0000

Type Values Removed Values Added
First Time appeared Mautic
Mautic mautic
Vendors & Products Mautic
Mautic mautic
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 26 Oct 2026 16:15:00 +0000

Type Values Removed Values Added
Title Open redirect flaw in Mautic form submission endpoint

Mon, 26 Oct 2026 14:00:00 +0000

Type Values Removed Values Added
Description An Open Redirect vulnerability exists in the public form submission endpoint (/form/submit) of Mautic. After a form is submitted, the application redirects the visitor to a return address supplied with the submission without verifying that it points to the Mautic instance or another trusted host. An unauthenticated attacker can exploit this to send visitors from a legitimate Mautic domain to an arbitrary external website, for example to phishing pages that imitate the original landing page or to sites that deliver malware. Any Mautic instance with a published form is affected. Exploitation requires the victim to submit a form prepared by the attacker.
Weaknesses CWE-601
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Mautic

Published:

Updated: 2026-10-26T15:35:52.657Z

Reserved: 2026-10-22T06:43:09.882Z

Link: CVE-2026-115196

cve-icon Vulnrichment

Updated: 2026-10-26T15:33:28.903Z

cve-icon NVD

Status : Deferred

Published: 2026-10-26T14:16:31.157

Modified: 2026-10-26T16:17:17.003

Link: CVE-2026-115196

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-26T16:15:14Z

Weaknesses