CVE-2026-115193

Stored XSS in Mautic 7 Contact Detail Page

Published Oct 26, 2026 CVSS 3.1 · 8.2 High EPSS < 1% KEV · Not listed
Description
A stored Cross-Site Scripting (XSS) vulnerability exists in the contact detail view of Mautic 7. Values of HTML-type custom contact fields are rendered without output sanitization. A user or integration able to write a value to such a field (for example, through contact editing, the contact API, or a form submission mapped to the field) can store a script payload in it. When another user, including an administrator, opens the affected contact's detail page, the injected script executes within the context of their active browser session. This could allow an attacker to perform administrative actions on behalf of the victim, such as creating new administrator accounts, altering system configuration, or accessing contact and campaign data.

Remediation

Vendor Workaround

There are no official workarounds. To mitigate this vulnerability without upgrading, restrict contact create and edit permissions and API access to trusted users, and avoid mapping public form fields or publicly updatable settings to HTML-type contact fields.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title Stored XSS in Mautic 7 Contact Detail Page
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'}

Type Values Removed Values Added
Description A stored Cross-Site Scripting (XSS) vulnerability exists in the contact detail view of Mautic 7. Values of HTML-type custom contact fields are rendered without output sanitization. A user or integration able to write a value to such a field (for example, through contact editing, the contact API, or a form submission mapped to the field) can store a script payload in it. When another user, including an administrator, opens the affected contact's detail page, the injected script executes within the context of their active browser session. This could allow an attacker to perform administrative actions on behalf of the victim, such as creating new administrator accounts, altering system configuration, or accessing contact and campaign data.
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 8.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Mautic
Published
Updated
Oct 26, 2026, 3:35 PM
Reserved
Oct 22, 2026, 6:39 AM
Status
Deferred
Published
Oct 26, 2026, 2:16 PM
Modified
Oct 26, 2026, 4:17 PM