PHP 7.0.30 is outdated server software running on 228 websites worldwide, and it contains four known security vulnerabilities that hackers actively exploit. Three of these vulnerabilities are rated HIGH severity, meaning attackers could crash your website, steal data, or inject malicious code. If your site still runs this version, you're at significant risk of being compromised without immediate action.
This comprehensive guide will help you understand what these vulnerabilities are, identify if your website is affected, and walk you through the complete upgrade process. We'll break down the technical details in plain language so you can protect your online presence effectively.
Don't wait until your site is hacked to take action. The vulnerabilities in PHP 7.0.30 are well-documented and actively targeted by cybercriminals who scan the internet for outdated versions.
PHP is the programming language that powers approximately 77% of all websites on the internet. It's the backend code running behind the scenes when you visit a website—handling everything from processing contact forms to managing user logins and displaying dynamic content. PHP 7.0.30 is a specific version of this language released in 2018, and while it was modern at the time, it's now considered outdated with expired security support.
When software developers find security problems in PHP, they release updates to patch them. PHP 7.0.30 stopped receiving security updates years ago, meaning any new vulnerabilities discovered won't be fixed. The four vulnerabilities we're discussing here affect image processing, language conversion, directory authentication, and error page display—all common website functions that attackers can weaponize to compromise your site.
4 CVEs found. The most critical are explained below.
PHP has a problem reading certain corrupted JPEG image files. If someone uploads a specially crafted photo to your website, it could cause your server to crash or behave unexpectedly.
Impact: Your website could go down temporarily, or attackers could potentially access sensitive server information. Any site allowing photo uploads is at risk.
↗ View on NVDPHP's text character conversion feature gets stuck in an endless loop when processing certain invalid text formats. An attacker could send malicious data that freezes your server.
Impact: Your website becomes slow or completely unresponsive, making it unavailable to real customers. This is a denial of service attack that affects site availability.
↗ View on NVDPHP crashes when connecting to certain directory servers (LDAP) if they send unexpected responses. Attackers controlling these servers could deliberately crash your application.
Impact: Your website or application stops working, disrupting business operations and user access until the server is restarted.
↗ View on NVDWhen users try to access package files on your site, the error pages don't properly clean user input before displaying it. An attacker could inject malicious code into error messages.
Impact: Attackers could trick visitors into running malicious code, potentially stealing login credentials or sensitive information from users visiting your site.
↗ View on NVDScan your site in 30 seconds. Used by 500+ web agencies.
PHP 7.0.30 is no longer safe to use on any production website. The three HIGH-severity vulnerabilities in this version allow attackers to crash your site, cause denial of service attacks, and potentially execute malicious code through image files and LDAP authentication. With 228 websites still running this outdated version, the attack surface remains wide open for cybercriminals.
Protecting your website starts with taking inventory of what software you're running. SiteRecipe.com provides automated security scanning that identifies vulnerable software versions, outdated plugins, and misconfigurations—giving you a complete picture of your security posture in minutes. Our platform makes it easy to track when you've upgraded and monitor for new vulnerabilities in the future. Visit SiteRecipe.com today to scan your website for free and take the first step toward protecting your online business.
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