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Prototype Pollution

WordPress 5.9.2 Security Update Fixes XSS and Prototype Pollution Vulnerabilities

Mar 10, 2022 | WordPress Security News

On March 10, 2022, the WordPress core team released WordPress version 5.9.2, which contains security patches for a high-severity vulnerability as well as two medium-severity issues. The high-severity issue affects version 5.9.0 and 5.9.1 and allows contributor-level users and above to insert malicious JavaScript into WordPress posts. Because this is a security release, it is recommended that you update your sites immediately. Note, that in order to avoid web site crashes and to assure timely security updates it is best to use our WordPress Maintenance Service. WordPress < 5.9.2 -...

What Is Prototype Pollution

Jan 10, 2022 | Knowledge Base

Prototype Pollution Bugs Prototype Pollution is a vulnerability that allows attackers to exploit the rules of the JavaScript programming language, by injecting properties into existing JavaScript language construct prototypes, such as Objects to compromise applications in various ways. JavaScript allows all Object attributes to be altered. This includes their magical attributes such as __proto__, constructor and prototype. An attacker is able to manipulate these attributes to overwrite, or pollute a JavaScript application object prototype of the base object, by injecting other values....

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