Thousands of WordPress Websites Hacked in Exploitation of Vulnerability

In a concerning development, a significant number of WordPress websites have fallen victim to a recently patched vulnerability, which has been exploited in a long-running campaign known as Balada Injector. The cybersecurity firm Sucuri, a subsidiary of GoDaddy, issued a warning on Friday, revealing that the flaw affects a plugin associated with the popular Newspaper and Newsmag themes. This article delves into the details of the vulnerability, the extent of the exploitation, and provides insights into safeguarding websites against similar attacks.

Details of the vulnerability

The vulnerability was discovered by a diligent Vietnamese researcher who identified a flaw in the TagDiv Composer front-end page builder plugin. This plugin is commonly used in conjunction with the Newspaper and Newsmag premium themes, which have been sold nearly 140,000 times.

Exploitation and Impact

Sucuri attributes the recent hacking spree to the notorious Balada Injector campaign. It has been observed that the hackers, through the exploitation of the vulnerability in the TagDiv plugin, managed to infect over 17,000 websites, with a staggering 9,000 cases directly linked to the vulnerability in question.

The primary objective of the threat actors behind the Balada Injector campaign is to hijack websites and redirect unsuspecting visitors to fake tech support, lottery, and other fraudulent sites. These actions potentially lead to further compromise of users’ personal information and financial fraud.

Scale of the Balada Injector Campaign

According to Sucuri’s estimates from April, the Balada Injector campaign has infected an estimated one million WordPress sites since its inception in 2017. This highlights the sustained and ongoing threat posed by the attackers.

Method of Attack and Infiltration

The hackers are leveraging the CVE-2023-3169 vulnerability to inject malicious code into a specific location within the WordPress database. By doing so, they ensure the propagation of their code to every public page of the targeted website, maximizing their reach and impact.

Attackers’ Actions and Capabilities

Upon gaining initial access to a compromised site, the attackers employ several techniques to maintain control. These include uploading backdoors, adding malicious plugins, and creating admin accounts to expand their capabilities and retain persistent access points.

Determining if a Website is Targeted

Sucuri has shared a comprehensive blog post containing technical details and indicators of compromise (IoCs). By studying these IoCs, WordPress website owners can ascertain whether their site has been targeted in the Balada Injector campaign.

Recommendations for protection

Sucuri has offered valuable recommendations for protecting websites against similar attacks. These include promptly patching vulnerabilities, regularly updating plugins and themes, employing strong and unique passwords, implementing two-factor authentication, and utilizing reputable security plugins.

This recent exploitation of the TagDiv Composer vulnerability and the subsequent compromise of thousands of WordPress websites underscores the importance of vigilance and prompt response. Website owners must prioritize regular updates, security practices, and staying abreast of potential threats to ensure the safety of their platforms and the visitors they serve.

To effectively safeguard websites, it is crucial to remain informed about emerging vulnerabilities and threats while consistently implementing necessary security precautions. By doing so, WordPress users can minimize the risk of falling victim to malicious campaigns such as the Balada Injector.

In an ever-evolving digital landscape, the protection of WordPress websites requires ongoing attention and proactive measures. Let all of us prioritize the security and integrity of our websites to ensure a safe online experience for ourselves and our visitors.

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