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CVE-2026-26980: Ghost CMS SQL Injection Actively Exploited to Hijack 700+ Sites for ClickFix Attacks
Technical breakdown of the Ghost CMS SQL injection exploited at scale to inject fake browser update (ClickFix) malware into 700+ websites.
Threat Intel
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Megalodon: 5,561 GitHub Repos Backdoored via Infostealer-Sourced CI Credentials
How campaign Megalodon weaponized infostealer-harvested developer secrets to backdoor 5,561 GitHub repositories in automated CI runs.
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Security Roundup: Exchange Zero-Day, GitHub Breach, Cisco SD-WAN, Defender Zero-Days — Week of May 21, 2026
Weekly briefing: Microsoft Exchange OWA zero-day XSS, TeamPCP GitHub breach (3.8K repos), Cisco SD-WAN UAT-8616, and Defender zero-days.
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CVE-2026-41091 & CVE-2026-45498: Microsoft Defender Zero-Days Under Active Exploitation
Technical root cause for the dual Microsoft Defender zero-days exploited to evade AV scanning and achieve privilege escalation.
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CVE-2026-20182: Cisco SD-WAN Authentication Bypass Exploited by Nation-State Actor UAT-8616
How nation-state threat group UAT-8616 weaponized a Cisco SD-WAN authentication bypass to compromise enterprise transit hubs.
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GitHub Internal Breach: TeamPCP Exfiltrates 3,800 Repos via Poisoned VS Code Extension
Investigation into how TeamPCP used a poisoned VS Code Marketplace extension to pivot into developer workstations and exfiltrate 3,800 GitHub repositories.
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CVE-2026-42897: Microsoft Exchange OWA XSS Zero-Day — No Patch, Active Exploitation
How threat actors are actively weaponizing an unpatched stored XSS zero-day in Microsoft Exchange OWA to hijack mailbox session tokens.
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Mini Shai-Hulud: The TanStack Supply Chain Attack That Defeated SLSA Provenance
How the Mini Shai-Hulud attack poisoned TanStack npm packages and bypassed SLSA Level 3 build provenance guarantees.
Security Roundup
Security Roundup: PAN-OS Zero-Day, RubyGems Supply Chain Attack, SHADOW-EARTH-053 Espionage — Week of May 14, 2026
Weekly briefing: PAN-OS auth portal buffer overflow (root RCE), RubyGems 500+ malicious packages, and SHADOW-EARTH-053 espionage.
Threat Intel
SHADOW-EARTH-053: China APT Espionage Against Asian Governments and NATO — ShadowPad, Godzilla, and Patient Tradecraft
In-depth threat intelligence report on SHADOW-EARTH-053 deploying ShadowPad, Godzilla webshells, and long-term espionage tradecraft.
Supply Chain
RubyGems Supply Chain Attack: BufferZoneCorp, GemStuffer, and 500+ Malicious Packages
How campaign BufferZoneCorp flooded RubyGems with over 500 malicious packages using typosquatting and GemStuffer payload obfuscation.
CVE Deep Dive
CVE-2026-0300: PAN-OS Unauthenticated RCE — Root Access via Authentication Portal Buffer Overflow
Technical analysis of the CVSS 10.0 PAN-OS authentication portal buffer overflow granting unauthenticated remote root access.