CVE intelligence and bounded remediation

CVE-2023-33255 — An issue was discovered in Papaya Viewer 1.0.1449

Medium CVSS 6.1

An issue was discovered in Papaya Viewer 1.0.1449. User-supplied input in form of DICOM or NIFTI images can be loaded into the Papaya web application without any kind of sanitization. This allows injection of arbitrary JavaScript code into image metadata, which is executed when that metadata is displayed in the Papaya web application.

Severity
Medium
CVSS
6.1 (3.1)
Published
2023-05-26
CISA KEV
Not currently listed
Ecosystem
javascript/npm
Weaknesses
CWE-79

Affected products

  • uthscsa / papaya_viewer / 1.0

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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