---
id: CVE-2026-102372
title: >-
  GestSup versions before 3.2.62 fail to properly sanitize HTML email bodies in
  the IMAP LOGIN connector, allowing unauthenticated attackers to store
  arbitrary JavaScript in ticket descriptions and replies
summary: >-
  GestSup versions before 3.2.62 fail to properly sanitize HTML email bodies in
  the IMAP LOGIN connector, allowing unauthenticated attackers to store
  arbitrary JavaScript in ticket descriptions and replies. Attackers can send
  emails to the…
severity: medium
cvss: 6.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
vendor: GestSup
product: GestSup
affected:
  - GestSup < 3.2.62
published: '2026-09-29'
updated: '2026-09-29'
sourceUpdated: '2026-09-29T01:16:44.593'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-102372'
references:
  - url: 'https://gestsup.fr/index.php?page=changelog'
    label: disclosure@vulncheck.com
  - url: 'https://gestsup.fr/index.php?page=download'
    label: disclosure@vulncheck.com
  - url: >-
      https://gestsup.fr/index.php?page=download&channel=stable&version=3.2.62&type=patch
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/gestsup-before-3.2.62-stored-xss-via-email-body-in-login-imap-connector
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-29T01:24:51.145Z'
---

## Overview

GestSup versions before 3.2.62 fail to properly sanitize HTML email bodies in the IMAP LOGIN connector, allowing unauthenticated attackers to store arbitrary JavaScript in ticket descriptions and replies. Attackers can send emails to the monitored mailbox containing script tags and event handlers that execute in technician browsers, enabling ticket data theft and unauthorized actions.

## Remediation

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