All news with #csp bypass tag

JS#SMUGGLER Uses Compromised Sites to Deploy NetSupport RAT

🔍 Securonix has detailed a campaign named JS#SMUGGLER that leverages compromised websites and an obfuscated JavaScript loader to deliver the NetSupport RAT. Attackers chain a hidden iframe and a remote HTA executed via mshta.exe to run encrypted PowerShell stagers and fetch the RAT. The loader applies device-aware branching and a visit-tracking mechanism to trigger payloads only on first visits, reducing detection risk. Temporary stagers are removed and payloads execute in-memory to minimize forensic artifacts.

Microsoft to Block Unauthorized Scripts in Entra ID

🔒 Microsoft will update its Content Security Policy to block unauthorized script injection during browser-based Entra ID sign-ins at login.microsoftonline.com. The policy will permit script downloads only from Microsoft-trusted CDN domains and allow inline execution solely from trusted Microsoft sources. Rolled out globally in mid-to-late October 2026 under the Secure Future Initiative, the change excludes Microsoft Entra External ID. Organizations should test sign-in flows and avoid browser extensions or tools that inject code to prevent authentication friction.

Critical ForcedLeak Flaw Exposed in Salesforce AgentForce

⚠️ Researchers at Noma Security disclosed a critical 9.4-severity vulnerability called ForcedLeak that affected Salesforce's AI agent platform AgentForce. The chain used indirect prompt injection via Web-to-Lead form fields to hide malicious instructions within CRM data, enabling potential theft of contact records and pipeline details. Salesforce has patched the issue by enforcing Trusted URLs and reclaiming an expired domain used in the attack proof-of-concept. Organizations are advised to apply updates, audit lead data for suspicious entries, and strengthen real-time prompt-injection detection and tool-calling guardrails.

Salesforce Patches Critical 'ForcedLeak' Prompt Injection Bug

⚠️ Salesforce has released patches for a critical prompt-injection vulnerability dubbed ForcedLeak that could allow exfiltration of CRM data from Agentforce. Discovered and reported by Noma Security on July 28, 2025 and assigned a CVSS score of 9.4, the flaw affects instances using Web-to-Lead when input validation and URL controls are lax. Researchers demonstrated a five-step chain that coerces the Description field into executing hidden instructions, queries sensitive lead records, and transmits the results to an attacker-controlled, formerly allowlisted domain. Salesforce has re-secured the expired domain and implemented a Trusted URL allowlist to block untrusted outbound requests and mitigate similar prompt-injection vectors.

Iframe Security Exposed — Payment Checkout Blind Spot

🔒Payment iframes are no longer a guaranteed sandbox: attackers have adopted pixel-perfect overlays and other injection techniques to steal card data from checkout pages. The article dissects the August 2024 Stripe skimmer campaign that compromised dozens of merchants and used a deprecated API to validate stolen cards in real time. It explains why legacy controls like X-Frame-Options and basic CSP fail when the host page is compromised and outlines a practical six-step defense combining strict CSP, real-time DOM monitoring, secure postMessage handling, and tooling changes required by PCI DSS 4.0.1.

Why XSS Still Matters: MSRC on a 25-Year Threat Landscape

🛡️ MSRC reports that Cross-Site Scripting (XSS) remains a persistent threat across legacy portals and modern single-page applications, with hundreds of cases triaged in the past year. Between July 2024 and July 2025, MSRC mitigated over 970 XSS cases and awarded more than $900,000 in bounties, spanning low-impact self-XSS to zero-click critical exploits. The post describes MSRC’s severity matrix that combines data classification and exploit conditions, outlines servicing scope and exclusion criteria, and publishes a practical submission checklist. Developers and researchers are encouraged to adopt context-aware encoding, Content Security Policy (CSP), and secure-by-default frameworks to reduce exposure.