---
title: "CVE-2026-115193: Mautic - Stored XSS"
description: "Mautic contains a stored XSS caused by unsanitized rendering of HTML-type custom contact fields in the contact detail view, letting attackers execute scripts in administrators' browsers, exploit requires ability to write to custom fields."
url: https://panop.io/threat-heartbeat/CVE-2026-115193/
---

# CVE-2026-115193 Mautic - Stored XSS

Mautic contains a stored XSS caused by unsanitized rendering of HTML-type custom contact fields in the contact detail view, letting attackers execute scripts in administrators' browsers, exploit requires ability to write to custom fields.

CVSS base score 8.2 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-115193)

## Details

Type

Stored XSS

Impact

Stored XSS

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N

Published

26 October 2026

Updated

27 October 2026

Weakness

[CWE-79](https://cwe.mitre.org/data/definitions/79.html)

## Vendor fix

Update to the latest version of Mautic that includes sanitization for custom contact fields.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-115193](https://nvd.nist.gov/vuln/detail/CVE-2026-115193)
- [https://github.com/mautic/mautic/security/advisories/GHSA-3295-vq3p-93rw](https://github.com/mautic/mautic/security/advisories/GHSA-3295-vq3p-93rw)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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