Zero Day Wire

Cloudflare WAF Zero-Day Allowed Attackers to Bypass Security Controls via ACME Challenge Path

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Cloudflare WAF Zero-Day Allowed Attackers to Bypass Security Controls via ACME Challenge Path

A critical zero-day vulnerability in Cloudflare's Web Application Firewall (WAF) allowed attackers to bypass security controls and directly access protected origin servers. Security researchers at FearsOff discovered that requests targeting the /.well-known/acme-challenge/ directory could reach origin servers even when WAF rules explicitly blocked all other traffic. How

By Zero Day Wire
Critical Deno Vulnerabilities Enable Server Secrets Exposure and Windows Command Injection

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Critical Deno Vulnerabilities Enable Server Secrets Exposure and Windows Command Injection

Two significant security vulnerabilities have been discovered in Deno, the modern JavaScript and TypeScript runtime known for its "secure by default" architecture. The flaws could expose sensitive server secrets and allow command injection on Windows systems. Vulnerabilities CVE IDCVSS ScoreTypeImpactCVE-2026-228639.2 (Critical)Missing Cryptographic StepSecrets exposureCVE-2026-22864HighCommand InjectionArbitrary code

By Zero Day Wire
ConnectWise Patches High-Severity XSS and Session Cookie Vulnerabilities in PSA Platform

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ConnectWise Patches High-Severity XSS and Session Cookie Vulnerabilities in PSA Platform

ConnectWise has released a security update for its Professional Services Automation (PSA) platform, addressing two vulnerabilities that could allow stored script execution and session cookie theft. The company recommends upgrading to version 2026.1 as soon as possible. Vulnerabilities CVE IDTypeCVSS ScoreImpactCVE-2026-0695Cross-Site Scripting (XSS)8.7 (High)Stored script executionCVE-2026-0696Sensitive

By Zero Day Wire