CVE intelligence and bounded remediation
CVE-2020-26505 — Marmind Marmind security vulnerability
A Stored Cross-Site Scripting (XSS) vulnerability in the “Marmind” web application with version 4.1.141.0 allows an attacker to inject code that will later be executed by legitimate users when they open the assets containing the JavaScript code. This would allow an attacker to perform unauthorized actions in the application on behalf of legitimate users or spread malware via the application. By using the “Assets Upload” function, an attacker can abuse the upload function to upload a malicious PDF file containing a stored XSS.
- Severity
- Medium
- CVSS
- 6.1 (3.1)
- Published
- 2020-11-05
- CISA KEV
- Not currently listed
- Ecosystem
- javascript/npm
- Weaknesses
- CWE-79
Affected products
- marmind / marmind / 4.1.141.0
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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