GestSup up to 3.2.61 IMAP Login Connector cross site scripting

Summaryinfo

A vulnerability was found in GestSup up to 3.2.61. It has been rated as problematic. Impacted is an unknown function of the component IMAP Login Connector. This manipulation causes cross site scripting. The identification of this vulnerability is CVE-2026-102372. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as problematic was found in GestSup up to 3.2.61. Affected by this vulnerability is an unknown function of the component IMAP Login Connector. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. The summary by CVE is:

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.

The advisory is shared at gestsup.fr. This vulnerability is known as CVE-2026-102372 since 09/29/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

Upgrading to version 3.2.62 eliminates this vulnerability.

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Productinfo

Name

• GestSup

Version

• 3.2.0
• 3.2.1
• 3.2.2
• 3.2.3
• 3.2.4
• 3.2.5
• 3.2.6
• 3.2.7
• 3.2.8
• 3.2.9
• 3.2.10
• 3.2.11
• 3.2.12
• 3.2.13
• 3.2.14
• 3.2.15
• 3.2.16
• 3.2.17
• 3.2.18
• 3.2.19
• 3.2.20
• 3.2.21
• 3.2.22
• 3.2.23
• 3.2.24
• 3.2.25
• 3.2.26
• 3.2.27
• 3.2.28
• 3.2.29
• 3.2.30
• 3.2.31
• 3.2.32
• 3.2.33
• 3.2.34
• 3.2.35
• 3.2.36
• 3.2.37
• 3.2.38
• 3.2.39
• 3.2.40
• 3.2.41
• 3.2.42
• 3.2.43
• 3.2.44
• 3.2.45
• 3.2.46
• 3.2.47
• 3.2.48
• 3.2.49
• 3.2.50
• 3.2.51
• 3.2.52
• 3.2.53
• 3.2.54
• 3.2.55
• 3.2.56
• 3.2.57
• 3.2.58
• 3.2.59
• 3.2.60
• 3.2.61

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