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    CVE-2026-59994

    EspoCRM is an open source customer relationship management application. Prior to 9.3.9, an unauthenticated remote attacker can send an email to a monitored group or IMAP address, including an email-to-Case address, and place arbitrary HTML in its plain-text body. EspoCRM stores that body and renders it without escaping in Email Received stream notification emails sent to users following the related record, allowing HTML injection and, in mail clients that execute it, JavaScript execution. Earlier sanitization for Post and Mention notifications did not cover this notification path. This issue is fixed in version 9.3.9.

    Published:Oct 15, 2026
    Last Modified:Oct 20, 2026
    EPS:Oct 15, 2026
    EPSS Score:0.00345
    CVSS Score:4.3

    Affected Products

    Vendor
    Espocrm
    Product
    Espocrm

    Exploits

    No exploit reference

    Related CVEs

    CVE-2026-118686 (CVSS 8.7) — EspoCRM before 9.3.11 and 10.x before 10.0.8 contains a denial of service vulnerability in which the password-…
    CVE-2026-113643 (CVSS 5.3) — A vulnerability was found in EspoCRM up to 9.3.10/10.0.10. This affects the function ImageSourceProvider::get …
    CVE-2026-75505 (CVSS 6) — EspoCRM is an open source customer relationship management application. Prior to 10.0.2, an authenticated user…
    CVE-2026-77460 (CVSS 6.5) — EspoCRM is an open source customer relationship management application. Prior to 10.0.3, a user with email-tem…
    CVE-2026-63130 (CVSS 5.5) — EspoCRM is an open source customer relationship management application. Prior to 9.3.10, an authenticated admi…
    CVE-2026-55154 (CVSS 5.4) — EspoCRM is an open source customer relationship management application. Prior to 9.3.9, application/Espo/Tools…
    CVE-2026-55184 (CVSS 3.5) — EspoCRM is an open source customer relationship management application. Prior to 9.3.9, a user with Email Temp…
    CVE-2026-53575 (CVSS 2.7) — EspoCRM is an open source customer relationship management application. Prior to 9.3.9, an authenticated admin…
    CVE-2026-53574 (CVSS 7.6) — EspoCRM is an open source customer relationship management application. From 8.1.0 until 9.3.8, an authenticat…
    CVE-2026-46691 (CVSS 6.5) — EspoCRM is an open source customer relationship management application. Prior to 9.3.7, an authenticated 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