---
id: CVE-2025-66420
title: Tryton sao (aka tryton-sao) before 7.6.9 allows XSS via an HTML attachment
summary: >-
  Tryton sao (aka tryton-sao) before 7.6.9 allows XSS via an HTML attachment.
  This is fixed in 7.6.9, 7.4.19, 7.0.38, and 6.0.67.
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
published: '2025-11-30'
updated: '2026-10-07'
sourceUpdated: '2026-10-07T20:10:01.970'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-66420'
references:
  - url: 'https://discuss.tryton.org/t/security-release-for-issue-14290/8895'
    label: cve@mitre.org
  - url: 'https://foss.heptapod.net/tryton/tryton/-/issues/14290'
    label: cve@mitre.org
tags:
  - nvd
epss: 0.00168
epssPercentile: 0.05588
ingestedAt: '2026-10-07T20:46:46.741Z'
---

## Overview

Tryton sao (aka tryton-sao) before 7.6.9 allows XSS via an HTML attachment. This is fixed in 7.6.9, 7.4.19, 7.0.38, and 6.0.67.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.