How to Run Third-Party Ads Inside an Iframe Without Loosening Your Site's CSP

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A developer found a way to integrate a third-party ad network into a static site without relaxing its strict Content-Security-Policy by isolating ad scripts inside a self-hosted iframe. The main page only requires a 'frame-src self' directive, keeping the core policy intact while the ad content loads in a sandboxed context with its own scope. On Cloudflare Workers Static Assets, the developer discovered that per-path CSP overrides in the _headers file do not replace the site-wide header but instead merge with it, causing browsers to enforce the stricter intersection of both policies. The fix required explicitly removing inherited headers using the '!' prefix syntax rather than attempting to override them. Additionally, repeated 403 errors during testing turned out to be fraud-detection rejections triggered by VPN usage, a headless browser, and missing referer headers — not a misconfiguration — and resolved immediately on a normal residential connection.

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Chinese Threat Actor UAT-10147 Uses AI to Accelerate Attacks with SPECTRE Malware

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Manic Android Malware Steals PINs and Relays Data via Nearby Infected Devices

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Critical Zimbra RCE Flaw CVE-2026-73570 Actively Exploited via SMTP Injection

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China-Linked SilkParasite APT Uses Seven RATs and Google Drive to Spy on Central Asia

A China-nexus threat actor tracked as SilkParasite has been conducting a high-severity espionage campaign against government and economic policy organizations across Central Asia. Attackers deliver password-protected RAR archives containing malicious Office documents that, once opened, use DLL side-loading to deploy multiple remote access trojans including DriveSilkRAT and CookiETagRAT. DriveSilkRAT uses Google Drive as its command-and-control channel while CookiETagRAT hides C2 communications inside standard HTTP Cookie and ETag headers, making malicious traffic blend with legitimate web activity. Security researchers at Bitdefender identified at least seven distinct RATs in the campaign, with structural similarities across different programming languages suggesting possible AI-assisted malware development. Organizations are advised to monitor for Office processes spawning signed applications that load adjacent DLLs, unusual Google Drive API calls, and abnormal WMI child process activity.

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