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    CVE-2026-55184

    EspoCRM is an open source customer relationship management application. Prior to 9.3.9, a user with Email Template or PDF Template edit permission can store crafted HTML that bypasses moderateSanitizeHtml(). When another user opens the template in edit mode and clientCspDisabled is true, the stored payload executes and can hijack the user's session. This issue is fixed in version 9.3.9.

    Published:Oct 15, 2026
    Last Modified:Oct 17, 2026
    EPS:Oct 15, 2026
    EPSS Score:0.00202
    CVSS Score:3.5

    Affected Products

    Vendor
    Espocrm
    Product
    Espocrm

    Exploits

    No exploit reference

    Related CVEs

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    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-2026-59994 (CVSS 4.3) — EspoCRM is an open source customer relationship management application. Prior to 9.3.9, an unauthenticated rem…
    CVE-2026-55154 (CVSS 5.4) — EspoCRM is an open source customer relationship management application. Prior to 9.3.9, application/Espo/Tools…
    CVE-2026-53575 (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