xss injection

DocCms latest SQL injection (insert injection) DocCms latest SQL injection (insert injection) First, let's give a general idea about how this SQL statement is generated. We can see the WooYun: DocCms latest SQL injection vulnerability. It uses url encoding to bypass filterin

XSS: Cross-site scripting (Cross-site scripting, often referred to as XSS) is a security vulnerability attack for Web site applications and is a form of code injection. It allows malicious users to inject code into a Web page, and other users will be affected when they view the page. Such attacks typically include HTML and client-side scripting languages. CSRF: C

The SQL injection event is already the most troublesome attack method in the last century. The HTML injection vulnerability has emerged in the 21st century. With the rapid development of the web, the XSS vulnerability cannot be ignored, A Brief Introduction to the XSS vulnerability is caused by an

solve the problem.As the saying goes, a prolonged illness becomes good doctor. Then, always thinking about one thing, the problem will always be solved with more than a multiplier.New SolutionsFor the problems that arise, I have two points to say, one is to the background of the verification logic, this does not need to be specific, nothing more than the integrity of the validation logic, for possible situations to abstract, extract the general validation logic, for the individual validation al

RAyh4c Black Box Let's talk about the idea and specific code of using discuz xss last year. A persistent XSS vulnerability exists in the personal signature settings of all versions of discuz x Series and below: for example, when modifying a personal signature, submit This XSS application scenario is special. It can be triggered only on the Personal Data settings

getting a data URI (01:was intercepted. After a test of the egg ache, the document was filtered out for a while. All right...... Turn into Unicode and continue around:This is over, but the page was ruined. Oh, people always have so many days will be foolish force. Re-register an account. Thought this time will be done once, so still avoid single quotation marks, wrote a:Well, it's been intercepted again. Test for a long time finally impatient (the title has a word limit, if you do not find the

1. Basic concepts of XSS attacksXSS is a computer security vulnerability that often appears in web applications, allowing malicious Web users to embed code into pages that are available to other users. For example, the code includes HTML code and client script. An attacker could bypass access control by using an XSS vulnerability-such as the Origin policy (same). This type of vulnerability is widely known f

would be executed automatically when other users browsed the site for the purpose of the attack. For example, theft of user cookies, destruction of page structure, redirection to other websites, etc. XSS attacks are similar to SQL injection attacks. It seems that the harm is very big, we must mend it. So how to fix it, first of all we know how he attacked:We directly enter , and when the user views this pa

XSS Terminator: Content Security Policy (CSP)Content Security Policy (CSP) Introduction The traditional web security should mainly be the same origin policy ). Website A's Code cannot access website B's data. Each domain is isolated from other domains and creates A security sandbox for developers. In theory, this is a very clever practice, but in practice, attackers use various tricks to overturn this protection.