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Internet
Breach intelligence, attack campaigns, and threat reports targeting the Internet sector.
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Internet Threat Reports
NGINX CVE-2026-42945: Critical Vulnerability Under Active Exploitation
In May 2026, a critical heap buffer overflow vulnerability, CVE-2026-42945, was disclosed in NGINX's ngx_http_rewrite_module, affecting versions 0.6.27 through 1.30.0. This flaw allows unauthenticated attackers to send specially crafted HTTP requests, potentially causing worker process crashes and, under certain conditions, remote code execution. The vulnerability stems from improper handling of unnamed PCRE captures combined with rewrite directives containing a question mark in the replacement string. ([thehackernews.com](https://thehackernews.com/2026/05/nginx-cve-2026-42945-exploited-in-wild.html?utm_source=openai)) The public availability of a proof-of-concept exploit has heightened the risk of widespread attacks, especially given NGINX's extensive use across the internet. Organizations are urged to update to patched versions—NGINX Open Source 1.31.0 or 1.30.1, and NGINX Plus R37, R36 P4, or R32 P6—to mitigate potential threats. ([thehackernews.com](https://thehackernews.com/2026/05/nginx-cve-2026-42945-exploited-in-wild.html?utm_source=openai))
2 months ago
Kill Chain
Critical Vulnerabilities in Avada Builder Plugin Affect Over One Million WordPress Sites
In May 2026, two critical vulnerabilities were discovered in the Avada Builder WordPress plugin, affecting over one million active installations. The first, CVE-2026-4782, is an arbitrary file read vulnerability exploitable by authenticated users with at least subscriber-level access, allowing them to read sensitive files on the server. The second, CVE-2026-4798, is a time-based blind SQL injection vulnerability that can be exploited without authentication, enabling attackers to extract sensitive information from the database, including password hashes. Both vulnerabilities have been patched in version 3.15.3 of the plugin. This incident underscores the importance of timely software updates and the potential risks associated with widely used plugins. Organizations should prioritize patch management and consider implementing additional security measures to protect against similar vulnerabilities in the future.
2 months ago
Kill Chain
NGINX Vulnerability CVE-2026-42945: What You Need to Know
In May 2026, a critical vulnerability (CVE-2026-42945) was discovered in NGINX's ngx_http_rewrite_module, affecting versions 0.6.27 through 1.30.0. This heap buffer overflow flaw can be exploited by unauthenticated attackers using specially crafted HTTP requests, leading to denial-of-service conditions and, under certain configurations, remote code execution. The issue arises when NGINX configurations utilize both 'rewrite' and 'set' directives, a common pattern in API gateways and reverse proxy setups. The discovery of this 18-year-old vulnerability underscores the importance of regular code audits and timely patching. Given NGINX's widespread use across various industries, organizations are urged to update to the latest versions to mitigate potential risks associated with this flaw.
2 months ago
Kill Chain
Critical Authentication Bypass Vulnerability in Burst Statistics WordPress Plugin (CVE-2026-8181)
In May 2026, a critical authentication bypass vulnerability, CVE-2026-8181, was discovered in the Burst Statistics WordPress plugin, affecting versions 3.4.0 and 3.4.1. This flaw allowed unauthenticated attackers to impersonate administrator accounts by exploiting improper handling of authentication functions, potentially leading to full site compromise. The vulnerability was actively exploited shortly after disclosure, with over 7,400 attacks recorded within 24 hours. This incident underscores the persistent threat posed by vulnerabilities in widely used WordPress plugins. It highlights the importance of prompt patching and vigilant monitoring, as attackers rapidly exploit such flaws to gain unauthorized access and control over websites.
2 months ago
Kill Chain
NGINX Rift: Unveiling the 18-Year-Old CVE-2026-42945 Vulnerability
In May 2026, a critical vulnerability (CVE-2026-42945) was discovered in NGINX's ngx_http_rewrite_module, present since 2008. This heap buffer overflow flaw allows unauthenticated attackers to send crafted HTTP requests, potentially causing worker process crashes or remote code execution, especially on systems with Address Space Layout Randomization (ASLR) disabled. The issue affects NGINX Plus and NGINX Open Source versions up to 1.30.0 and has been patched in subsequent releases. The disclosure of this 18-year-old vulnerability underscores the importance of regular code audits and timely patching. With NGINX's widespread use across the internet, organizations are urged to update their systems promptly to mitigate potential exploitation risks.
2 months ago
Kill Chain
Unveiling AI-Driven E-Commerce Fraud Schemes in 2026
In May 2026, a cybersecurity researcher uncovered a sophisticated e-commerce fraud scheme involving fake online marketplaces. These fraudulent sites, often appearing in search results through SEO poisoning, lured users with attractive deals on various products. Upon attempting to purchase items, victims were redirected through compromised legitimate websites to malicious payment pages designed to steal personal and financial information. The attackers utilized AI-generated content and cloned legitimate product listings to enhance the credibility of their fake marketplaces. This incident highlights the evolving tactics of cybercriminals in exploiting search engine algorithms and AI technologies to perpetrate fraud. The increasing prevalence of such schemes underscores the need for enhanced vigilance and advanced detection mechanisms to protect consumers and businesses from emerging e-commerce threats.
2 months ago
Kill Chain
Škoda Online Shop Data Breach: A Wake-Up Call for E-Commerce Security
In May 2026, Škoda Auto disclosed a data breach affecting its online shop, where attackers exploited a software vulnerability to gain unauthorized access. The compromised data includes customer names, addresses, email addresses, phone numbers, order details, and login credentials. Notably, financial information remained secure as it was processed by external payment service providers. Upon detection, Škoda promptly addressed the vulnerability, reported the incident to authorities, and initiated a forensic investigation. This incident underscores the critical importance of robust cybersecurity measures in e-commerce platforms. With the increasing frequency of such breaches, organizations must prioritize regular security assessments, timely patching of vulnerabilities, and comprehensive incident response plans to protect customer data and maintain trust.
2 months ago
Kill Chain
cPanel CVE-2026-41940 Exploited to Deploy Filemanager Backdoor
In May 2026, a critical authentication bypass vulnerability, CVE-2026-41940, was discovered in cPanel and WebHost Manager (WHM) software, allowing unauthenticated remote attackers to gain administrative access to affected systems. Exploiting this flaw, a threat actor known as Mr_Rot13 deployed a backdoor named Filemanager, enabling unauthorized control over compromised environments. The attack involved injecting malicious code to create unauthorized sessions, leading to potential data theft, malware deployment, and system compromise. ([support.cpanel.net](https://support.cpanel.net/hc/en-us/articles/40073787579671-Security-CVE-2026-41940-cPanel-WHM-WP2-Security-Update-04-28-2026?utm_source=openai)) This incident underscores the escalating threat posed by sophisticated cyber actors targeting widely used web hosting platforms. The rapid exploitation of CVE-2026-41940 highlights the critical need for organizations to promptly apply security patches and implement robust monitoring to detect and mitigate unauthorized access attempts.
2 months ago
Kill Chain
Critical cPanel and WHM Vulnerabilities Require Immediate Attention
In May 2026, cPanel and Web Host Manager (WHM) disclosed three critical vulnerabilities: CVE-2026-29201, CVE-2026-29202, and CVE-2026-29203. These flaws allowed for arbitrary file read, code execution, and potential privilege escalation. Exploiting these vulnerabilities, attackers could gain unauthorized access to servers, compromising the security of hosted websites and data. cPanel promptly released patches to address these issues, urging users to update to the latest versions to mitigate risks. This incident underscores the persistent threat posed by software vulnerabilities in widely used web hosting platforms. The rapid exploitation of such flaws highlights the importance of timely patch management and proactive security measures to protect against unauthorized access and potential data breaches.
2 months ago
Kill Chain
PCPJack Malware: A New Threat to Cloud Security
In May 2026, cybersecurity researchers identified a sophisticated malware named PCPJack, designed to infiltrate cloud environments by exploiting exposed services and harvesting sensitive credentials. The malware initiates its attack through a 'bootstrap' module that establishes persistence and downloads additional components. It then employs a 'monitor' script to collect system metrics and exfiltrate configuration files, cloud service credentials, and cryptocurrency wallets. Notably, PCPJack targets services such as AWS, GitHub, Slack, and popular email platforms, posing significant risks to organizations' cloud infrastructures. PCPJack's unique approach includes utilizing parquet files from Common Crawl for stealthy, pre-validated target discovery, allowing it to efficiently identify and exploit vulnerable cloud services. This method underscores the evolving tactics of threat actors in leveraging open-source data for malicious purposes. The incident highlights the critical need for organizations to implement robust cloud security measures, including the use of credential vaults and multifactor authentication, to safeguard against such advanced threats.
2 months ago
Kill Chain
ACSC Alerts on ClickFix Attacks Distributing Vidar Stealer via Compromised WordPress Sites
In May 2026, the Australian Cyber Security Centre (ACSC) identified a malware campaign targeting Australian organizations through compromised WordPress websites. Attackers employed the 'ClickFix' social engineering technique, presenting users with fake Cloudflare verification prompts that instructed them to execute malicious PowerShell commands. This led to the installation of Vidar Stealer, an information-stealing malware capable of exfiltrating credentials, browser data, cryptocurrency wallets, and system information. The campaign exploited user trust in legitimate websites to facilitate malware distribution. This incident underscores the evolving sophistication of social engineering attacks and the persistent threat posed by infostealer malware. Organizations must remain vigilant, as such techniques can bypass traditional security measures by manipulating user behavior. The ACSC's advisory highlights the need for enhanced security awareness and technical controls to mitigate these risks.
2 months ago
Kill Chain
Critical vm2 Sandbox Vulnerability (CVE-2026-26956) Allows Host Code Execution
In May 2026, a critical vulnerability identified as CVE-2026-26956 was discovered in vm2, a widely-used Node.js sandboxing library. This flaw allows attackers to escape the sandbox environment and execute arbitrary code on the host system. The issue affects vm2 version 3.10.4 and earlier, particularly in environments running Node.js 25 with WebAssembly exception handling and JSTag support enabled. Exploitation involves triggering a specially crafted TypeError, leading to the leakage of host-side error objects into the sandbox, which attackers can manipulate to gain access to Node.js internals and execute commands on the host. The discovery of this vulnerability underscores the challenges in securely isolating untrusted code within JavaScript sandbox environments. Given vm2's extensive use in online coding platforms, automation tools, and SaaS applications, the potential impact is significant. Users are strongly advised to upgrade to vm2 version 3.10.5 or later to mitigate the risk associated with this vulnerability.
2 months ago
Kill Chain
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