CVE-2026-102372 GestSup before 3.2.61 Stored XSS via Email Body in LOGIN IMAP Connector
Unauthenticated attackers can inject JavaScript via email bodies in the IMAP connector, leading to ticket data theft and unauthorized actions in technician browsers.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-102372?
CVE-2026-102372 is a medium-severity cross-site scripting vulnerability in GestSup, published on 29 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
GestSup versions before 3.2.61 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.
Weakness: CWE-79
Which versions are affected by CVE-2026-102372?
How do I fix CVE-2026-102372?
No fix has been published for CVE-2026-102372 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-102372 being exploited?
There is no known exploitation of CVE-2026-102372 in the wild and no public exploit code.
Sources
Also known as GHSA-ghhh-8g6j-jh47.