Findings

CVE-2026-33733

EspoCRM is an open source customer relationship management application.

Published Apr 22, 2026 · updated Jun 17, 2026 · espocrm espocrm

EspoCRM is an open source customer relationship management application. Prior to version 9.3.4, the admin template management endpoints accept attacker-controlled and values and pass them into template path construction without normalization or traversal filtering. As a result, an authenticated admin can use sequences to escape the intended template directory and read, create, overwrite, or delete arbitrary files that resolve to or under the web application user's filesystem permissions. Version 9.3.4 fixes the issue.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 22, 2026 · NIST NVD

    Detected

    EspoCRM is an open source customer relationship management application. Prior to version 9.3.4, the admin template management endpoints accept attacker-controlled and values and pass them into template path construction without normalization or traversal filtering. As a result, an authenticated admin can use sequences to escape the intended template directory and read, create, overwrite, or delete

  2. Jun 17, 2026 · NIST NVD

    Updated

    EspoCRM is an open source customer relationship management application. Prior to version 9.3.4, the admin template management endpoints accept attacker-controlled and values and pass them into template path construction without normalization or traversal filtering. As a result, an authenticated admin can use sequences to escape the intended template directory and read, create, overwrite, or delete

Affected

  • cpe espocrm/espocrmversion unspecified

Sources

  • CVE.orgVulnerability recordCVE-2026-33733

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2026-33733

    EspoCRM is an open source customer relationship management application. Prior to version 9.3.4, the admin template management endpoints accept attacker-controlled and values and pass them into template path construction without normalization or traversal filtering.

    nvd.nist.gov

References

CVE-2026-33733 · ZeroDay Findings