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    CVE-2026-109119

    Improper Privilege Management in the user management API endpoint (/api/users/{username_or_id}) in Rdiffweb allows authenticated users to elevate their privileges to administrator by modifying the role parameter in a POST request.

    Published:Oct 16, 2026
    Last Modified:Oct 17, 2026
    EPS:Oct 16, 2026
    EPSS Score:
    CVSS Score:8.8

    Affected Products

    Vendor
    Ikus-soft
    Product
    Rdiffweb

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-862 Missing Authorization

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-665 Exploitation of Thunderbolt Protection Flaws

    Related CVEs

    CVE-2026-109118 (CVSS 4.6) — Improper path containment check in ikus060 rdiffweb 7.1.1 allows an authenticated user to cause the browse, re…
    CVE-2025-67796 (CVSS 8.1) — IKUS Rdiffweb before 2.10.5 has an improper authorization flaw that allows an attacker with any valid or stole…
    CVE-2023-5289 (CVSS 8.8) — Allocation of Resources Without Limits or Throttling in GitHub repository ikus060/rdiffweb prior to 2.8.4.…
    CVE-2023-4138 (CVSS 6.5) — Allocation of Resources Without Limits or Throttling in GitHub repository ikus060/rdiffweb prior to 2.8.0.…
    CVE-2022-4723 (CVSS 6.5) — Allocation of Resources Without Limits or Throttling in GitHub repository ikus060/rdiffweb prior to 2.5.5.…
    CVE-2022-4722 (CVSS 7.2) — Authentication Bypass by Primary Weakness in GitHub repository ikus060/rdiffweb prior to 2.5.5.…
    CVE-2022-4720 (CVSS 6.1) — Open Redirect in GitHub repository ikus060/rdiffweb prior to 2.5.5.…
    CVE-2022-4721 (CVSS 5.4) — Failure to Sanitize Special Elements into a Different Plane (Special Element Injection) in GitHub repository i…
    CVE-2022-4719 (CVSS 9.8) — Business Logic Errors in GitHub repository ikus060/rdiffweb prior to 2.5.5.…
    CVE-2022-4724 (CVSS 9.8) — Improper Access Control in GitHub repository ikus060/rdiffweb prior to 2.5.5.…

    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