CodiMD through 2.2.0 has a CSP-based protection mechanism...
        
  Moderate severity
        
          Unreviewed
      
        Published
          Apr 26, 2025 
          to the GitHub Advisory Database
          •
          Updated Apr 26, 2025 
      
  
Description
        Published by the National Vulnerability Database
      Apr 26, 2025 
    
  
        Published to the GitHub Advisory Database
      Apr 26, 2025 
    
  
        Last updated
      Apr 26, 2025 
    
  
CodiMD through 2.2.0 has a CSP-based protection mechanism against XSS through uploaded JavaScript content, but it can be bypassed by uploading a .html file that references an uploaded .js file.
References