CVE-2026-102372CWE-79cross-site-scripting

CVE-2026-102372

Medium · published September 29, 2026

CVSS v3.1
6.1
EPSS
0%
Percentile
10.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.1 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0
5.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
EPSS
0.00211 · 10.8th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-09-29T05:16Z
References (5)
https://blog.spiizn.xyz/articles/remote-code-execution-turning-a-ticket-into-a-new-issue/ · [email protected]https://gestsup.fr/index.php?page=changelog · [email protected]https://gestsup.fr/index.php?page=download · [email protected]https://gestsup.fr/index.php?page=download&channel=stable&version=3.2.61&type=patch · [email protected]https://www.vulncheck.com/advisories/gestsup-before-3.2.62-stored-xss-via-email-body-in-login-imap-connector · [email protected]
EPSS history
Timeline
  • 30 SEP 03:24Z
    EPSS moved — → 0%
    epss
  • 29 SEP 00:33Z
    GestSup before 3.2.62 Stored XSS via Email Body in LOGIN IMAP Connector
    cvelistv5