CVE Feed

    Dashboard / CVE / CVE-2023-5876

    CVE-2023-5876

    Mattermost fails to properly validate a RegExp built off the server URL path, allowing an attacker in control of an enrolled server to mount a Denial Of Service.

    Published:Nov 2, 2023
    Last Modified:Nov 21, 2024
    EPS:Nov 2, 2023
    EPSS Score:0.00118
    CVSS Score:3.1

    Affected Products

    Vendor
    Mattermost
    Product
    Mattermost Desktop

    Exploits

    No exploit reference

    Related CVEs

    CVE-2026-75587 (CVSS 3.6) — Mattermost Desktop App versions <=6.2 6.2.2.0 fail to redact the pre-auth secret when generating a diagnostics…
    CVE-2026-8683 (CVSS 6.5) — Mattermost Desktop App versions <=6.1 5.5.13.0 fail to account for attempting to open extremely long URLs in t…
    CVE-2026-6517 (CVSS 6.3) — Mattermost Desktop App versions <=6.1 5.5.13.0 fail to restrict the allow list of domains to which NTLM creden…
    CVE-2026-3471 (CVSS 6.5) — Mattermost Desktop App versions <=6.1 6.0.1 5.4.13.0 fail to prevent an invalid URL from loading in a pop-up w…
    CVE-2026-4643 (CVSS 3.5) — Mattermost Desktop App versions <=6.1 6.0.1 5.4.13.0 fail to prevent server-rendered content from closing an u…
    CVE-2026-1628 (CVSS 4.6) — Mattermost Desktop App versions <=5.13.3 fail to attach listeners restricting navigation to external sites wit…
    CVE-2026-1046 (CVSS 7.6) — Mattermost Desktop App versions <=6.0 6.2.0 5.2.13.0 fail to validate help links which allows a malicious Matt…
    CVE-2025-13326 (CVSS 3.9) — Mattermost Desktop App versions <6.0.0 fail to enable the Hardened Runtime on the Mattermost Desktop App when …
    CVE-2025-13321 (CVSS 3.3) — Mattermost Desktop App versions <6.0.0 fail to sanitize sensitive information from Mattermost logs and clear d…
    CVE-2025-55035 (CVSS 6.1) — Mattermost Desktop App versions <=5.13.0 fail to manage modals in the Mattermost Desktop App that stops a user…

    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