wildcard certs security issues

Today in the company ran into a problem like this: the general problem is that I put the newly generated foreign CDN path to the page to view, and found that there will be similar to the following error messageRefused to load the script xxxxxx because it violates the following Content Security Policy directive: "Script-src ' self ' x Xxxxxxxxxxxx "The original picture is gone, I posted this picture on the blog of Ruan Yi Peak, this problem is mainly d

principles3.2 Common MySQL injection statements(1) Without user name and password(2) In the case of not entering a password, using a user(3) Guess the password of a user(4) To insert the data when the right to mention(5) Renewal of the right to mention and insertion of the right to the same(6) Malicious updates and deletions(7) Union, join, etc.(8) Wildcard symbol%, _(9) There is also a lot of guessing table information injected into SQL33 Some metho

js| Safety | issues I. OverviewWhen the network programming becomes more and more convenient, the system function is more and more powerful, the security refers to several times drops. This is probably the tragedy and sadness of network programming. A variety of dynamic content generation environment has prospered www, their design goal is to give developers more power to the end users more convenient. Beca

I. Overview As network programming becomes more and more convenient, the system functions become more and more powerful, and the security is exponentially reduced. This may be the misfortune and sorrow of network programming. WWW is flourishing in various dynamic content generation environments. Their design goal is to give developers more strength and convenience to end users. Because of this, system designers and developers must clearly consider

I. OverviewAs network programming becomes more and more convenient, the system functions become more and more powerful, and the security is exponentially reduced. This may be the misfortune and sorrow of network programming. WWW is flourishing in various dynamic content generation environments. Their design goal is to give developers more strength and convenience to end users. Because of this, system designers and developers must clearly consider

encoding $this->mysqli->set_charset ("UTF8"); Create a SQL statement that uses a wildcard $sql = ' SELECT user_id from admin WHERE username=? and password=?; //Compile the statement to get a stmt object. $stmt = $conn->prepare ($sql); /******************** After the content can be reused, do not have to compile *************************///Bind data with Bind_param method //You can see, Because I left two? That is, to bind two data to it, so the f