WordPress 4.9.5, released in April 2018, powers thousands of websites worldwide but contains significant security vulnerabilities that put your site at risk. With 1 critical and 4 medium-severity CVEs identified, site owners using this outdated version face potential file uploads, XSS attacks, and unauthorized data modifications. This comprehensive guide will help you understand these vulnerabilities, identify if your site is affected, and implement immediate security fixes.
Security threats evolve constantly, and WordPress 4.9.5 lacks protections against modern attack vectors. Whether you're running an e-commerce store with WooCommerce plugins or managing user access through WordPress login systems, these vulnerabilities could compromise your entire website. Let's explore each threat and show you exactly how to protect your business.
WordPress 4.9.5 is an older version of WordPress released in April 2018. WordPress is the world's most popular website builder, powering over 43% of all websites on the internet. It's a free, open-source platform that lets anyone create blogs, e-commerce stores, and professional websites without coding knowledge. Think of it as a digital storefront builder that handles everything from content management to user accounts.
As a website owner, your WordPress version is crucial because outdated versions lack security patches that protect against hackers and malicious attacks. WordPress 4.9.5 was released over six years ago, meaning it predates many modern security threats. Every day, cybercriminals discover new ways to exploit old software, and websites stuck on ancient versions become easy targets. Upgrading to the latest WordPress version is like replacing old locks on your house with modern security systems.
5 CVEs found. The most critical are explained below.
A popular WooCommerce plugin (Uni CPO) has a security flaw that lets attackers upload files to your server without proper checks. This happens in the file upload feature that doesn't properly validate what type of files are being uploaded.
Impact: Attackers could upload malicious files like viruses or backdoors to take control of your entire website and steal customer data or inject malware into visitor browsers.
↗ View on NVDWordPress 4.9.5 and earlier don't properly verify where the login page redirects users after they log in. An attacker could redirect users to a fake site to steal their credentials.
Impact: Hackers could trick users into entering passwords on malicious websites by exploiting the redirect vulnerability, compromising account security.
↗ View on NVDWordPress 4.9.5 and earlier incorrectly trust URLs containing 'localhost' as being safe internal links. An attacker could exploit this to perform unauthorized actions.
Impact: Attackers could bypass security checks and access internal WordPress functions or sensitive data that should be restricted.
↗ View on NVDWordPress 4.9.5 and earlier expose the WordPress version number in a way that isn't properly escaped, allowing attackers to inject malicious code through this field.
Impact: Hackers could inject malicious scripts that execute when visitors view your site, potentially stealing data or redirecting them to malicious sites.
↗ View on NVDThe WP Links Page plugin (version 4.9.5 and earlier) doesn't properly check permissions before allowing users to modify content. Even basic subscriber accounts could change website data they shouldn't access.
Impact: Low-level user accounts could alter important website information, links, or screenshots without authorization, damaging your site's integrity and reputation.
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WordPress 4.9.5 represents a significant security liability in today's threat landscape. The combination of file upload vulnerabilities, XSS exploitation potential, and unauthorized access risks means your website, customer data, and business reputation are in genuine danger. These aren't theoretical threats—they're active vulnerabilities that hackers actively exploit against outdated WordPress installations every single day.
Don't leave your digital assets unprotected. Use SiteRecipe.com's comprehensive security scanning tools to identify vulnerabilities across your entire WordPress installation, receive step-by-step remediation guidance, and maintain continuous monitoring to ensure your site stays secure. Our platform provides instant vulnerability alerts, plugin security analysis, and automated update recommendations so you can focus on growing your business while we handle your security. Visit SiteRecipe.com today and get your free security audit—because protecting your website is too important to leave to chance.
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