CVE-2026-9809

Stored XSS in Mautic 7 Project Names Exposes Administrators

Published May 29, 2026 CVSS 3.1 · 7.6 High EPSS < 1% KEV · Not listed
Description
A stored Cross-Site Scripting (XSS) vulnerability exists in the Projects component of Mautic 7. When displaying project tags and popovers on administrative detail views (such as campaigns, emails, or forms), user-supplied project names are rendered without proper sanitization. An authenticated user with permissions to create or edit projects can exploit this to inject malicious script payloads. When an administrative user views an entity associated with a compromised project and hovers over its tag, 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, alter system configurations, or exfiltrate sensitive data.

Remediation

Vendor Workaround

There are no official workarounds. To mitigate this vulnerability without upgrading, restrict project creation and modification permissions to trusted administrative users.

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
Github GHSA Github GHSA GHSA-7h65-whp7-rgqf Mautic has Stored Cross-Site Scripting (XSS) in Projects Component
History
Type Values Removed Values Added
Metrics ssvc

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

Type Values Removed Values Added
Title Stored XSS in Mautic 7 Project Names Exposes Administrators
Type Values Removed Values Added
First Time appeared Mautic
Mautic mautic
Vendors & Products Mautic
Mautic mautic
Type Values Removed Values Added
Description A stored Cross-Site Scripting (XSS) vulnerability exists in the Projects component of Mautic 7. When displaying project tags and popovers on administrative detail views (such as campaigns, emails, or forms), user-supplied project names are rendered without proper sanitization. An authenticated user with permissions to create or edit projects can exploit this to inject malicious script payloads. When an administrative user views an entity associated with a compromised project and hovers over its tag, 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, alter system configurations, or exfiltrate sensitive data.
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 7.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:H/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Mautic
Published
Updated
May 29, 2026, 2:39 PM
Reserved
May 28, 2026, 8:01 AM
Status
Deferred
Published
May 29, 2026, 12:16 PM
Modified
Jul 21, 2026, 12:10 PM