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E-Learning

Breach intelligence, attack campaigns, and threat reports targeting the E-Learning sector.

162 threat reports
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E-Learning Threat Reports

Showing 157–162 / 162 reports
Cloudflare Thwarts Record-Breaking 22.2 Tbps DDoS Assault in 2025
Financial Services10 months ago

Cloudflare Thwarts Record-Breaking 22.2 Tbps DDoS Assault in 2025

In September 2025, Cloudflare successfully mitigated a record-breaking Distributed Denial-of-Service (DDoS) attack that peaked at 22.2 Tbps and 10.6 billion packets per second. Orchestrated over just 40 seconds, the massive volumetric attack overwhelmed network infrastructure, pushing the limits of firewalls, routers, and load balancers. Prior research links recent large-scale DDoS campaigns—including those hitting Cloudflare—to the AISURU botnet, which leveraged a sudden increase in infected devices globally, stemming in part from exploited router firmware vulnerabilities. Business impact was minimized due to Cloudflare’s rapid mitigation, but the attack underscores the ever-increasing scale and sophistication of DDoS threats. Record-breaking DDoS attacks are climbing in frequency and intensity, with attackers exploiting IoT vulnerabilities and leveraging formidable botnets. This surge highlights the urgent need for resilient, scalable mitigation strategies, and amplifies ongoing regulatory and industry pressure to strengthen defenses against large-scale infrastructure threats.

High impact

Kill Chain

ICInitial Compromise(high)
PEPrivilege Escalation(medium)
LMLateral Movement(medium)
C&CCommand & Control(medium)
EExfiltration(low)
IImpact(high)
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Global Surge in PhaaS: 17,500 Phishing Domains Exploit 316 Brands
Financial Services10 months ago

Global Surge in PhaaS: 17,500 Phishing Domains Exploit 316 Brands

In mid-2025, cybersecurity researchers exposed an extensive global phishing campaign orchestrated via Phishing-as-a-Service (PhaaS) platforms Lighthouse and Lucid. These services facilitated the deployment of more than 17,500 phishing domains impersonating 316 brands across 74 countries. The PhaaS operators provided subscription access to professionally maintained phishing kits targeting both enterprises and individual users, enabling attackers with minimal technical expertise to launch widespread credential theft attacks. As a result, organizations in sectors ranging from finance to technology experienced increases in fraudulent account access, financial loss, and reputational harm. The scale and automation lowered barriers for entry, allowing rapid exploitation and high turnover of malicious domains. This incident underscores the rapid evolution of cybercriminal business models, notably the rise of PhaaS, which commoditizes phishing attacks on a global scale. Its effectiveness and accessibility are driving a surge in targeted brand impersonation attempts and amplifying regulatory attention around authentication, threat monitoring, and user awareness.

Low impact

Kill Chain

ICInitial Compromise(high)
PEPrivilege Escalation(medium)
LMLateral Movement(medium)
C&CCommand & Control(medium)
EExfiltration(medium)
IImpact(low)
Read report
Sitecore Zero-Day Breach: ViewState Exploits Lead to Remote Code Execution
Computer Software/Engineering10 months ago

Sitecore Zero-Day Breach: ViewState Exploits Lead to Remote Code Execution

In early 2024, threat actors exploited a zero-day vulnerability in Sitecore's ASP.NET-based content management system by weaponizing exposed machine keys, enabling remote code execution via malicious ViewState deserialization. Attackers bypassed authentication controls to inject arbitrary code and gain persistent control over vulnerable web servers, leading to potential data exfiltration and site takeover. Multiple Sitecore installations globally were at risk, highlighting weaknesses in secure key management and web application security monitoring. Organizations faced reputational and operational impacts as attackers abused trusted digital experiences to deliver malware and conduct further intrusions. The incident is part of a broader surge in deserialization and code injection attacks targeting legacy .NET applications. Zero-day exploitation against business-critical CMS platforms increases urgency for robust segmentation, runtime detection, and zero trust controls to defend against rapidly evolving attack techniques.

Low impact

Kill Chain

ICInitial Compromise(high)
PEPrivilege Escalation(medium)
LMLateral Movement(medium)
C&CCommand & Control(medium)
EExfiltration(low)
IImpact(low)
Read report
Sitecore Vulnerabilities: Cache Poisoning and RCE Exploit Chain Uncovered (2025)
Computer Software/Engineering10 months ago

Sitecore Vulnerabilities: Cache Poisoning and RCE Exploit Chain Uncovered (2025)

In August 2025, researchers disclosed an exploit chain in the Sitecore Experience Platform involving three newly uncovered vulnerabilities—CVE-2025-53693 (HTML cache poisoning), CVE-2025-53691 (remote code execution via insecure deserialization), and CVE-2025-53694 (not yet detailed). The flaws allow attackers to first poison cached content by manipulating reflected inputs, and then leverage insecure deserialization to remotely execute arbitrary code on targeted Sitecore servers. If exploited, these issues can expose sensitive data and potentially compromise the full web application environment of affected organizations, particularly in sectors relying on large-scale digital experience management. This incident highlights the persistent risk of chained application vulnerabilities enabling critical attacks, such as lateral movement and RCE, within enterprise environments. With web applications being frequent targets and exploit code often surfacing soon after disclosures, organizations must prioritize proactive vulnerability management and robust segmentation to contain blast radius.

Low impact

Kill Chain

ICInitial Compromise(high)
PEPrivilege Escalation(medium)
LMLateral Movement(medium)
C&CCommand & Control(medium)
EExfiltration(low)
IImpact(low)
Read report
Session Hijacking and Browser Cookies: The State of Web App Security in 2024
Financial Services10 months ago

Session Hijacking and Browser Cookies: The State of Web App Security in 2024

In mid-2024, multiple web applications faced a surge in session hijacking incidents arising from insecure management of browser cookies. Attackers exploited weaknesses such as unencrypted HTTP traffic, poor cookie attributes, cross-site scripting (XSS), and predictable session identifiers to steal user session cookies, especially the Session ID. This allowed cybercriminals to impersonate users, gain unauthorized access to accounts, and exfiltrate sensitive data, including personal and payment information. The business impact was heightened customer risk, regulatory scrutiny, and erosion of trust, while common attack vectors included public Wi-Fi interception, malicious scripts, and subdomain cookie manipulation. The incident is relevant today as web app complexity and regulatory pressure increase, while attackers leverage more advanced session hijacking techniques. With ongoing changes in privacy laws (GDPR, CCPA, etc.) and threat actor innovation, organizations must harden cookie security and session management to avoid breaches with far-reaching consequences.

Low impact

Kill Chain

ICInitial Compromise(high)
PEPrivilege Escalation(medium)
LMLateral Movement(medium)
C&CCommand & Control(low)
EExfiltration(medium)
IImpact(low)
Read report
GhostPoster: Malicious Firefox Add-ons Drive 2025 Supply-Chain Breach
Computer Software/Engineering10 months ago

GhostPoster: Malicious Firefox Add-ons Drive 2025 Supply-Chain Breach

In late 2025, security researchers at Koi Security uncovered a widespread supply-chain malware campaign named "GhostPoster." This campaign weaponized 17 Mozilla Firefox browser add-ons, leveraging benign logo files to conceal malicious JavaScript that hijacked affiliate links, injected tracking codes, and orchestrated click and ad fraud operations. The compromised extensions had garnered over 50,000 downloads before Mozilla intervened to remove them from its add-on repository, but users were already exposed to extensive privacy intrusions and potential data exfiltration. The GhostPoster incident underscores a growing trend of exploiting trusted browser extension ecosystems for mass infection and financial fraud. With attackers increasingly targeting supply-chain vectors and browser add-ons, organizations and individuals must reevaluate extension vetting processes amid surging regulatory scrutiny and evolving adversary techniques.

High impact

Kill Chain

ICInitial Compromise(high)
PEPrivilege Escalation(medium)
LMLateral Movement(low)
C&CCommand & Control(medium)
EExfiltration(high)
IImpact(high)
Read report
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