CVE Feed

    Dashboard / CVE / CVE-2021-3740

    CVE-2021-3740

    A Session Fixation vulnerability exists in chatwoot/chatwoot versions prior to 2.4.0. The application does not invalidate existing sessions on other devices when a user changes their password, allowing old sessions to persist. This can lead to unauthorized access if an attacker has obtained a session token.

    Published:Nov 15, 2024
    Last Modified:Jul 10, 2025
    EPS:Nov 15, 2024
    EPSS Score:0.00053
    CVSS Score:6.8

    Affected Products

    Vendor
    Chatwoot
    Product
    Chatwoot

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-384 Session Fixation

    Related CVEs

    CVE-2026-72719 (CVSS 6.7) — Chatwoot is a customer engagement suite. Prior to 4.9.0, Chatwoot allowed authenticated account administrators…
    CVE-2026-63765 (CVSS 8.8) — Chatwoot before 4.16.0 contains an authentication bypass vulnerability in the direct uploads controller that a…
    CVE-2026-44707 (CVSS 6.8) — Chatwoot is a customer engagement suite. From 2.14.0 to before 4.13.0, a Pre-Account Takeover (Pre-ATO) vulner…
    CVE-2026-44706 (CVSS 8.5) — Chatwoot is a customer engagement suite. From 2.2.0 to before 4.11.2, a SQL injection vulnerability exists in …
    CVE-2026-5205 (CVSS 2.1) — A vulnerability was identified in chatwoot up to 4.11.2. Affected by this vulnerability is the function Webhoo…
    CVE-2026-4990 (CVSS 5.5) — A security vulnerability has been detected in chatwoot up to 4.11.1. The affected element is an unknown functi…
    CVE-2025-12246 (CVSS 2.1) — A security flaw has been discovered in chatwoot up to 4.7.0. This issue affects some unknown processing of the…
    CVE-2025-12245 (CVSS 5.5) — A vulnerability was identified in chatwoot up to 4.7.0. This vulnerability affects the function initPostMessag…
    CVE-2024-0640 (CVSS 4.8) — A stored cross-site scripting (XSS) vulnerability exists in chatwoot/chatwoot versions 3.0.0 to 3.5.1. This vu…
    CVE-2025-21628 (CVSS 9.1) — Chatwoot is a customer engagement suite. Prior to 3.16.0, conversation and contact filters endpoints did not s…

    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