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    CVE-2026-100389

    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.

    Published:Sep 25, 2026
    Last Modified:Sep 30, 2026
    EPS:Sep 25, 2026
    EPSS Score:0.00574
    CVSS Score:8.1

    Affected Products

    Vendor
    Gestsup
    Product
    Gestsup

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs

    Related CVEs

    CVE-2026-102374 (CVSS 5.3) — GestSup versions before 3.2.62 contain a stored cross-site scripting vulnerability in the IMAP OAuth connector…
    CVE-2026-102373 (CVSS 7.1) — GestSup versions before 3.2.62 fail to validate ticket ownership when loading comments via the threadedit para…
    CVE-2026-102372 (CVSS 5.3) — GestSup versions before 3.2.61 fail to properly sanitize HTML email bodies in the IMAP LOGIN connector, allowi…
    CVE-2026-22196 (CVSS 7.7) — GestSup versions prior to 3.2.60 contain a SQL injection vulnerability in ticket creation functionality. User-…
    CVE-2026-22198 (CVSS 5.1) — GestSup versions prior to 3.2.60 contain a pre-authentication stored cross-site scripting (XSS) vulnerability …
    CVE-2026-22197 (CVSS 7.5) — GestSup versions prior to 3.2.60 contain multiple SQL injection vulnerabilities in the asset list functionalit…
    CVE-2026-22195 (CVSS 7.7) — GestSup versions prior to 3.2.60 contain a SQL injection vulnerability in the search bar functionality. User-c…
    CVE-2026-22194 (CVSS 8.9) — GestSup versions up to and including 3.2.60 contain a cross-site request forgery (CSRF) vulnerability where th…
    CVE-2023-52060 (CVSS 4.3) — A Cross-Site Request Forgery (CSRF) in Gestsup v3.2.46 allows attackers to arbitrarily edit user profile infor…
    CVE-2023-52059 (CVSS 5.4) — A cross-site scripting (XSS) vulnerability in Gestsup v3.2.46 allows attackers to execute arbitrary web script…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High