CVE intelligence and bounded remediation

CVE-2025-59428 — EspoCRM is an open source customer relationship management application

Medium CVSS 5.4

EspoCRM is an open source customer relationship management application. In versions before 9.1.9, a vulnerability allows arbitrary user creation, including administrative accounts, through a combination of stored SVG injection and lack of CSRF protection. An attacker with Knowledge Base edit permissions can embed a malicious SVG element containing a link in the body field of an article. When an authenticated user clicks the malicious link, they are redirected to an attacker-controlled HTML page that executes a CSRF request against the api/v1/User endpoint. If the victim is prompted for and enters their credentials, an attacker-controlled account is created with privileges determined by the CSRF payload. This issue has been patched in version 9.1.9.

Severity
Medium
CVSS
5.4 (3.1)
Published
2025-10-14
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-352, CWE-79

Affected products

  • espocrm / espocrm

Matched remediation archetype

Cross-site scripting and unsafe browser output

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Check exposure

  • Trace reflected, stored, and DOM-derived untrusted values into HTML, attributes, URLs, styles, scripts, and client-side template sinks.
  • Identify affected origins, authenticated user roles, sensitive browser capabilities, and where content is shared across tenants.
  • Review framework escaping, rich-text sanitization, legacy templates, and client-side rendering paths.

Remediate safely

  • Use context-aware framework output encoding and safe DOM APIs; keep untrusted data out of executable contexts.
  • Sanitize intentionally supported markup with a maintained allowlist policy and validate URLs and attributes separately.
  • Update affected rendering components and add tests for every output context using inert sentinel markup.

Authoritative sources

Complete CVE record and remediation plan

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