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    CVE-2026-26895

    User enumeration vulnerability in /pwreset.php in osTicket v1.18.2 allows remote attackers to enumerate valid usernames registered in the platform.

    Published:Apr 2, 2026
    Last Modified:Apr 8, 2026
    EPS:Apr 2, 2026
    EPSS Score:0.00047
    CVSS Score:5.3

    Affected Products

    Vendor
    Enhancesoft
    Product
    Osticket
    Vendor
    Osticket
    Product
    Osticket

    Exploits

    https://csacyber.com/blog/osticket-timing-vulnerability-understanding-the-risk

    Common Weakness Enumeration

    CWE-203 Observable Discrepancy

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-189 Black Box Reverse Engineering

    Related CVEs

    CVE-2026-18363 (CVSS 9.1) — A logic vulnerability in the password reset token validation routine implemented by osTicket in versions prior…
    CVE-2026-9507 (CVSS 5.1) — A session fixation vulnerability has been identified in osTicket v1.18.2. This security flaw allows an attacke…
    CVE-2026-22200 (CVSS 8.7) — Enhancesoft osTicket versions 1.18.x prior to 1.18.3 and 1.17.x prior to 1.17.7 contain an arbitrary file read…
    CVE-2023-46967 (CVSS 6.1) — Cross Site Scripting vulnerability in the sanitize function in Enhancesoft osTicket 1.18.0 allows a remote att…
    CVE-2023-27149 (CVSS 4.8) — A stored cross-site scripting (XSS) vulnerability in Enhancesoft osTicket v1.17.2 allows attackers to execute …
    CVE-2023-27148 (CVSS 4.8) — A stored cross-site scripting (XSS) vulnerability in the Admin panel in Enhancesoft osTicket v1.17.2 allows at…
    CVE-2021-45811 (CVSS 6.5) — A SQL injection vulnerability in the "Search" functionality of "tickets.php" page in osTicket 1.15.x allows au…
    CVE-2023-30082 (CVSS 7.5) — A denial of service attack might be launched against the server if an unusually lengthy password (more than 10…
    CVE-2022-31888 (CVSS 8.8) — Session Fixation vulnerability in in function login in class.auth.php in osTicket through 1.16.2.…
    CVE-2023-1315 (CVSS 5.4) — Cross-site Scripting (XSS) - Reflected in GitHub repository osticket/osticket prior to v1.16.6.…

    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