CVE-2026-102372
MediumCVSS 6.1Exploitation Probability (EPSS)
Low risk10th percentile - higher than 10% of all known CVEs
Summary
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.
Risk Assessment
An unauthenticated attacker can inject malicious JavaScript into the ticketing system that executes in a technician's browser, leading to data theft and unauthorized operations. The risk affects organizations using GestSup versions before 3.2.61.
Recommendation
Update GestSup to version 3.2.61 or later.
Other vulnerabilities in GestSup
See all- CVE-2026-22197High
GestSup versions prior to 3.2.60 contain multiple SQL injection vulnerabilities in the asset list functionality. Multiple request parameters used to filter, search, or sort assets are incorporated into SQL queries without sufficient neutralization, allowing an authenticated attacker to manipulate database queries. Successful exploitation can result in unauthorized access to or modification of database contents depending on database privileges.
- CVE-2026-22196High
GestSup versions prior to 3.2.60 contain a SQL injection vulnerability in ticket creation functionality. User-controlled input provided during ticket creation is incorporated into SQL queries without sufficient neutralization, allowing an authenticated attacker to manipulate database queries. Successful exploitation can result in unauthorized access to or modification of database contents depending on database privileges.
- CVE-2026-22195High
GestSup versions prior to 3.2.60 contain a SQL injection vulnerability in the search bar functionality. User-controlled search input is incorporated into SQL queries without sufficient neutralization, allowing an authenticated attacker to manipulate database queries. Successful exploitation can result in unauthorized access to or modification of database contents depending on database privileges.
- CVE-2026-22194High
GestSup versions up to and including 3.2.60 contain a cross-site request forgery (CSRF) vulnerability where the application does not verify the authenticity of client requests. An attacker can induce a logged-in user to submit crafted requests that perform actions with the victim's privileges. This can be exploited to create privileged accounts by targeting the administrative user creation endpoint.
- CVE-2026-102374Medium
GestSup versions before 3.2.62 contain a stored cross-site scripting vulnerability in the IMAP OAuth connector that double-decodes MIME-encoded email subjects after HTML escaping. Unauthenticated attackers can send crafted emails to monitored mailboxes with nested MIME encoded-words to inject JavaScript that executes in technician sessions when viewing tickets.
- CVE-2026-102373Medium
GestSup versions before 3.2.62 fail to validate ticket ownership when loading comments via the threadedit parameter in thread.php. Authenticated attackers can enumerate sequential comment IDs to read private comments from other users' tickets without proper authorization checks.
- CVE-2026-100389High
GestSup versions before 3.2.62 contain a remote code execution vulnerability in the basic IMAP connector's attachment handling that fails to skip blocked file extensions. Unauthenticated attackers can send emails with PHP attachments to monitored mailboxes, which are written to the web-accessible upload/ticket directory and executed when accessed.
Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

