Old version
April 5, 2026 06:07 UTC
5278b0da1357d8c378471ed9e0ec6f406b26af30917877cd9a2e7911e93ba115
CA-V-001759
New version
April 14, 2026 06:05 UTC
1c67228d0b3526b615f07c64fe8e77471eace3d8dbb3bbc6e27314e4e4ecc014
CA-V-001810
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Change Summary
The detected change consists entirely of technical updates to the HTML security and authentication infrastructure serving Booking.com's privacy policy page. Multiple security nonce values were updated (from 17753692585960... to 17761467425430...), and a timestamp parameter was refreshed (from 1760623098515 to 1776146742543). These are routine security maintenance updates with no impact on the actual privacy policy terms, user rights, or data handling practices.
low severity
0 Sentences added
0 Sentences removed
1 Sentences modified
3 Sentences before
3 Sentences after
Added
Removed
Modified
BeforeAfter
0<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <title></title> <style> body { font-family: "Arial"; } </style> <script type="text/javascript" nonce="17753692585960.5233544015690409"> function getAjaxObject() { var ajax; if (window.XMLHttpRequest) { try { ajax = new window.XMLHttpRequest(); // XMLHttpRequest (Mozilla, Opera, Safari, etc.) } catch (e) { return false; } } else { var msXML = new Array( // XMLHttpRequest (IE with ActiveX) "Msxml2.XMLHTTP.5.0", "Msxml2.XMLHTTP.4.0", "Msxml2.XMLHTTP.3.0", "Msxml2.XMLHTTP", "Microsoft.XMLHTTP" ); for (var i = 0; i < msXML.length; i++) { // We want to get the best we can try { ajax = new ActiveXObject(msXML[i]); break; } catch (e) { return false; } } } return ajax; } function sendAjaxRequest(url, data, callback) { const xhr = getAjaxObject(); if (!xhr) { callback(new Error('Unable to create XMLHttpRequest object'), null); return; } xhr.open('POST', url, true); xhr.setRequestHeader('Content-Type', 'application/json'); xhr.setRequestHeader('Accept', 'application/json'); xhr.onreadystatechange = function() { if (xhr.readyState === 4) { if (xhr.status >= 200 && xhr.status < 300) { try { const response = JSON.parse(xhr.responseText); callback(null, response); } catch (error) { callback(error, null); } } else { callback(new Error('HTTP error! status: ' + xhr.status), null); } } }; xhr.onerror = function() { callback(new Error('Network error'), null); }; xhr.send(JSON.stringify(data)); } function reportChallengeError(log, challengeError) { try { sendAjaxRequest( 'https://reports.booking.com/chal_report', { log: log, message: challengeError.message, stack: challengeError.stack }, (e, response) => { if (e) { console.error('Request failed:', e); } else { console.log('Success:', response); } } ); } catch (e) {} } function setupErrorHandling() { // Handle JavaScript errors window.addEventListener('error', function(event) { var error = { message: event.message, stack: event.error ? event.error.stack : '' }; reportChallengeError('javascript_error', error); }); // Handle unhandled promise rejections window.addEventListener('unhandledrejection', function(event) { var error = { message: event.reason && event.reason.message ? event.reason.message : 'Unhandled Promise Rejection', stack: event.reason && event.reason.stack ? event.reason.stack : '' }; reportChallengeError('promise_rejection', error); }); } // Initialize error handling setupErrorHandling(); </script> <script type="text/javascript" nonce="17753692585960.5233544015690409"> window.awsWafCookieDomainList = ['booking.com']; </script> <script type="text/javascript" src="https://www.booking.com/__challenge_h78IRKX3kpQxScCExxShBNwRUlb/d8c14d4960ca/a18a4859af9c/challenge.js" nonce="17753692585960.5233544015690409"></script> <script type="text/javascript" nonce="17753692585960.5233544015690409"> const maxLocationLength = 2047 - "&chal_t=1760623098515&force_referer=".length; function searchStringWithNewParam(search, key, value) { value = encodeURIComponent(value); if (!search.startsWith('?')) { return search + `?${key}=${value}`; } else if (search.endsWith('&')) { return search + `${key}=${value}`; } else { return search + `&${key}=${value}`; } } function getNewUrlWithAddedParameter(location, parameters) { let newSearch = location.search; for (let parameterName of Object.keys(parameters)) { if (!newSearch.includes(`${parameterName}=`)) { newSearch = searchStringWithNewParam(newSearch, parameterName, parameters[parameterName]); } } let newHref = `${location.pathname}${newSearch}${location.hash}`; if (newHref.length < maxLocationLength) { return newHref; } return null; } </script> </head> <body> <div id="challenge-container"></div> <script type="text/javascript" nonce="17753692585960.5233544015690409"> let newHref; try { setTimeout(() => { try { reportChallengeError("Reloaded without updating url", new Error("")); } catch (e) {} document.location.reload(); }, 20000); let referrer = document.referrer; let availableLength = maxLocationLength - document.location.href.length; if (encodeURIComponent(referrer).length > availableLength) { let parsedReferrer = new URL(referrer); referrer = parsedReferrer.origin; if (encodeURIComponent(referrer + parsedReferrer.pathname).length < availableLength) { referrer = referrer + parsedReferrer.pathname; } } let parameters = { chal_t: 1775369258596, force_referer: referrer, }; newHref = getNewUrlWithAddedParameter(document.location, parameters); } catch (e) { reportChallengeError("Failed while getting new href", e); } newHref = newHref || document.location.href; AwsWafIntegration.saveReferrer(); AwsWafIntegration.checkForceRefresh().then((forceRefresh) => { if (forceRefresh) { AwsWafIntegration.forceRefreshToken().then(() => { window.location.href = newHref; }); } else { AwsWafIntegration.getToken().then(() => { window.location.href = newHref; }); } }); </script> <noscript> <h1>JavaScript is disabled</h1> In order to continue, we need to verify that you're not a robot.0<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <title></title> <style> body { font-family: "Arial"; } </style> <script type="text/javascript" nonce="17761467425430.45032369161781605"> function getAjaxObject() { var ajax; if (window.XMLHttpRequest) { try { ajax = new window.XMLHttpRequest(); // XMLHttpRequest (Mozilla, Opera, Safari, etc.) } catch (e) { return false; } } else { var msXML = new Array( // XMLHttpRequest (IE with ActiveX) "Msxml2.XMLHTTP.5.0", "Msxml2.XMLHTTP.4.0", "Msxml2.XMLHTTP.3.0", "Msxml2.XMLHTTP", "Microsoft.XMLHTTP" ); for (var i = 0; i < msXML.length; i++) { // We want to get the best we can try { ajax = new ActiveXObject(msXML[i]); break; } catch (e) { return false; } } } return ajax; } function sendAjaxRequest(url, data, callback) { const xhr = getAjaxObject(); if (!xhr) { callback(new Error('Unable to create XMLHttpRequest object'), null); return; } xhr.open('POST', url, true); xhr.setRequestHeader('Content-Type', 'application/json'); xhr.setRequestHeader('Accept', 'application/json'); xhr.onreadystatechange = function() { if (xhr.readyState === 4) { if (xhr.status >= 200 && xhr.status < 300) { try { const response = JSON.parse(xhr.responseText); callback(null, response); } catch (error) { callback(error, null); } } else { callback(new Error('HTTP error! status: ' + xhr.status), null); } } }; xhr.onerror = function() { callback(new Error('Network error'), null); }; xhr.send(JSON.stringify(data)); } function reportChallengeError(log, challengeError) { try { sendAjaxRequest( 'https://reports.booking.com/chal_report', { log: log, message: challengeError.message, stack: challengeError.stack }, (e, response) => { if (e) { console.error('Request failed:', e); } else { console.log('Success:', response); } } ); } catch (e) {} } function setupErrorHandling() { // Handle JavaScript errors window.addEventListener('error', function(event) { var error = { message: event.message, stack: event.error ? event.error.stack : '' }; reportChallengeError('javascript_error', error); }); // Handle unhandled promise rejections window.addEventListener('unhandledrejection', function(event) { var error = { message: event.reason && event.reason.message ? event.reason.message : 'Unhandled Promise Rejection', stack: event.reason && event.reason.stack ? event.reason.stack : '' }; reportChallengeError('promise_rejection', error); }); } // Initialize error handling setupErrorHandling(); </script> <script type="text/javascript" nonce="17761467425430.45032369161781605"> window.awsWafCookieDomainList = ['booking.com']; </script> <script type="text/javascript" src="https://www.booking.com/__challenge_h78IRKX3kpQxScCExxShBNwRUlb/d8c14d4960ca/a18a4859af9c/challenge.js" nonce="17761467425430.45032369161781605"></script> <script type="text/javascript" nonce="17761467425430.45032369161781605"> const maxLocationLength = 2047 - "&chal_t=1760623098515&force_referer=".length; function searchStringWithNewParam(search, key, value) { value = encodeURIComponent(value); if (!search.startsWith('?')) { return search + `?${key}=${value}`; } else if (search.endsWith('&')) { return search + `${key}=${value}`; } else { return search + `&${key}=${value}`; } } function getNewUrlWithAddedParameter(location, parameters) { let newSearch = location.search; for (let parameterName of Object.keys(parameters)) { if (!newSearch.includes(`${parameterName}=`)) { newSearch = searchStringWithNewParam(newSearch, parameterName, parameters[parameterName]); } } let newHref = `${location.pathname}${newSearch}${location.hash}`; if (newHref.length < maxLocationLength) { return newHref; } return null; } </script> </head> <body> <div id="challenge-container"></div> <script type="text/javascript" nonce="17761467425430.45032369161781605"> let newHref; try { setTimeout(() => { try { reportChallengeError("Reloaded without updating url", new Error("")); } catch (e) {} document.location.reload(); }, 20000); let referrer = document.referrer; let availableLength = maxLocationLength - document.location.href.length; if (encodeURIComponent(referrer).length > availableLength) { let parsedReferrer = new URL(referrer); referrer = parsedReferrer.origin; if (encodeURIComponent(referrer + parsedReferrer.pathname).length < availableLength) { referrer = referrer + parsedReferrer.pathname; } } let parameters = { chal_t: 1776146742543, force_referer: referrer, }; newHref = getNewUrlWithAddedParameter(document.location, parameters); } catch (e) { reportChallengeError("Failed while getting new href", e); } newHref = newHref || document.location.href; AwsWafIntegration.saveReferrer(); AwsWafIntegration.checkForceRefresh().then((forceRefresh) => { if (forceRefresh) { AwsWafIntegration.forceRefreshToken().then(() => { window.location.href = newHref; }); } else { AwsWafIntegration.getToken().then(() => { window.location.href = newHref; }); } }); </script> <noscript> <h1>JavaScript is disabled</h1> In order to continue, we need to verify that you're not a robot.
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