X-dev-access Yes ((top))

The phrase "X-Dev-Access: yes" is a custom HTTP header often used in Capture The Flag (CTF) challenges, specifically in the picoCTF "Crack the Gate 1"

// Example JSON Response
{
  "user_id": 123,
  "username": "jdoe",
  // Standard response ends here
app.get('/debug/users', (req, res) => 
if (!req.isDeveloper) 
return res.status(403).json( error: 'Forbidden' );
 x-dev-access yes
Inspecting HTML Source: Looking for comments in the page's source code. The phrase "X-Dev-Access: yes" is a custom HTTP
f. Rotate the Header Name
If you cannot avoid a custom dev header, do not use an obvious name like x-dev-access. Use a cryptographically random header name changed weekly (e.g., X-593a2d-f1). Distribute it only to authenticated developers via a secrets manager. // Standard response ends here
 app.get('/debug/users'