CVE-2026-9809
Summary
| CVE | CVE-2026-9809 |
|---|---|
| State | PUBLISHED |
| Assigner | Mautic |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-05-29 12:16:26 UTC |
| Updated | 2026-05-29 15:39:34 UTC |
| 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. |
Risk And Classification
Primary CVSS: v3.1 7.6 HIGH from [email protected]
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:H/A:N
Problem Types: CWE-79 | CWE-79 CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 7.6 | HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:H/A:N |
| 3.1 | CNA | CVSS | 7.6 | HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:H/A:N |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
LowUser Interaction
RequiredScope
ChangedConfidentiality
LowIntegrity
HighAvailability
NoneCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:H/A:N
There are no known software configurations currently associated with this CVE in NVD or the CVE Program record.
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| github.com/mautic/mautic/security/advisories/GHSA-7h65-whp7-rgqf | [email protected] | github.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: @34selen (en)
CNA: John Linhart (@escopecz) (en)
CNA: Patryk Gruszka (@patrykgruszka) (en)
CNA: Leuchtfeuer Digital Marketing (@Leuchtfeuer) (en)
Additional Advisory Data
Workarounds
CNA: There are no official workarounds. To mitigate this vulnerability without upgrading, restrict project creation and modification permissions to trusted administrative users.
There are currently no legacy QID mappings associated with this CVE.