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We are aware of the recently disclosed PHP2Shell vulnerabilities (CVE-2026-109618 and CVE-2026-109619) and can confirm Filestack is not impacted by these vulnerabilities.

Filestack Technical Glossary

Comprehensive reference for Filestack platform architecture and services

RTF (Rich Text Format)

File Format

Rich Text Format is a proprietary document file format developed by Microsoft for cross-platform document interchange, supporting basic text formatting.

Format Structure

  • ASCII-based markup language
  • Control words for formatting commands
  • Cross-platform compatibility
  • Human-readable when opened in text editor

Formatting Support

  • Font types, sizes, and colors
  • Bold, italic, underline styling
  • Paragraph alignment and spacing
  • Basic table structures

Compatibility

  • Supported by most word processors
  • Email client compatibility
  • Legacy system support
  • Cross-platform document sharing

Content Extraction

  • RTF to TXT for plain text content
  • Formatting removal and simplification
  • Text analysis and processing
  • Document conversion workflows

Related Terms