CVE intelligence and bounded remediation
CVE-2019-14546 — An issue was discovered in EspoCRM before 5.6.9
An issue was discovered in EspoCRM before 5.6.9. Stored XSS was executed on the Preference page as well as while sending an email when a malicious payload was inserted inside the Email Signature in the Preference page. The attacker could insert malicious JavaScript inside his email signature, which fires when the victim replies or forwards the mail, thus helping him steal victims' cookies (hence compromising their accounts).
- Severity
- Medium
- CVSS
- 5.4 (3.0)
- Published
- 2019-08-05
- CISA KEV
- Not currently listed
- Ecosystem
- javascript/npm
- Weaknesses
- CWE-79
Affected products
- espocrm / espocrm
Matched remediation archetype
Cross-site scripting and unsafe browser output
This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.
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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