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CVE-2026-34227

Unauthenticated MCP Interface + CORS Bypass Sliver's MCP server spins up an unauthenticated SSE interface and fires back Access-Control-Allow-Origin: on every response. The mcp-go library doesn't validate Content-Type, so Simple Requests text/plain skip the browser's preflight check entirely. No...

CVE-2026-21858

CVE-2026-21858 + CVE-2025-68613 - n8n RCE Exploit Unauthenticated RCE chain for n8n 1.121.0 CVSS 10.0 Attack Chain 1. CVE-2026-21858 - Content-Type confusion → read /home/node/.n8n/config and database.sqlite 2. Extract encryption key and admin credentials from files 3. Forge admin JWT token 4...

SASTRA-ADI-WIGUNA-CVE-2026-21858-Holistic-Audit

= doi.org/10.5281/zenodo.18278825 = orcid.org/0009-0007-7728-256X RECONSTRUCTIONANALYSIS CVE-2026-21858: Ni8mare - n8n RCE Full Chain Exploit 1. Executive Summary & Overview This document presents a deterministic technical reconstruction analysis of the CVE-2026-21858 vulnerability, internally...

CVE-2025-57926

Sink: According to the mechanism of WordPress Core, XSS is prevented in post content, but with this plugin, the content is encoded and then decoded when rendered, unintentionally creating an XSS vulnerability." PoC: The base64 encoded payload is PHNjcmlwdD5hbGVydCgxKTwvc2NyaXB0Pg==...

CVE-2025-54677

Sink: Weak check only checks Content-Type, which leads to RCE system arbitrary file upload vulnerability PoC: Change the Content-Type field to image/png and the file signature to GIF87a...

Ashwesker-CVE-2026-21509

🛡️ CVE-2026-21509 — Microsoft Office Zero-Day Status: Actively exploited → Emergency patch released Severity: 🔴 High Risk Type: Security Feature Bypass 🔍 What is it? CVE-2026-21509 is a serious vulnerability in Microsoft Office that allows attackers to bypass built-in security protections by...

CVE-2026-21858

CVE-2026-21858 + CVE-2025-68613 - n8n Full Chain Unauthenticated Arbitrary File Read → Admin Token Forge → Sandbox Bypass → RCE Full unauthenticated RCE chain on n8n: 1. CVE-2026-21858 - Content-Type confusion → Arbitrary File Read 2. Read config + database → forge admin JWT 3. CVE-2025-68613 -...

ghost-cve-2026-26980

CVE-2026-26980 — Ghost CMS Content API SQL Injection Lab Unauthenticated blind SQL injection in Ghost CMS via the Content API's slug filter ordering mechanism, allowing arbitrary database reads from any Ghost instance without credentials. | ---|--- CVE| CVE-2026-26980 Advisory| GHSA-w52v-v783-gw9...

Ni8mare

🔒 Ni8mare Scanner Ethical Security Scanner for CVE-2026-21858 Ni8mare Vulnerability "Knowledge is power, but only if shared responsibly." Comprehensive vulnerability detection tool for n8n workflow automation instances. Detects the critical CVE-2026-21858 vulnerability CVSS 10.0 without performin...

CVE-2026-6182-SQLI-auth

SQL Injection Authentication Bypass - Simple Content Management System PHP Description A SQL Injection vulnerability exists in the admin login page of Simple Content Management System PHP. The user parameter is not sanitized before being passed to the SQL query, allowing an unauthenticated attack...

CVE-2026-6184-stored-XSS

Stored XSS in News Title - Simple Content Management System PHP Description A Stored Cross-Site Scripting XSS vulnerability exists in Simple Content Management System PHP. The News Title field in the admin panel does not sanitize user input before storing it in the database and reflecting it on t...

CVE-2026-21833

HCL AION is affected by a vulnerability in which the Content-Security-Policy CSP HTTP response header is not configured. CSP helps prevent attacks such as Cross-Site Scripting XSS by restricting the sources from which scripts, styles, and other resources can be loaded. The absence of this header...

CVE-2026-33917_SqlInjectionVulnerabilityOpenEMR8.0.0

CVE-2026-33917 - SQL Injection Vulnerability in OpenEMR Weakness CWE-89 Improper Neutralization of Special Elements used in an SQL Command 'SQL Injection' The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize ...

CVE-2026-21833 HCL AION is susceptible to a Missing "Content-Security-Policy" header Vulnerability (CVE-2026-21833)

HCL AION is affected by a vulnerability in which the Content-Security-Policy CSP HTTP response header is not configured. CSP helps prevent attacks such as Cross-Site Scripting XSS by restricting the sources from which scripts, styles, and other resources can be loaded. The absence of this header...

CVE-2026-21833

HCL AION is affected by a vulnerability due to a missing Content-Security-Policy (CSP) HTTP response header. The absence of this header reduces the effectiveness of browser-based security controls, which are designed to prevent attacks like Cross-Site Scripting (XSS) by restricting the sources of...

EUVD-2026-90966

HCL AION is affected by a vulnerability in which the Content-Security-Policy CSP HTTP response header is not configured. CSP helps prevent attacks such as Cross-Site Scripting XSS by restricting the sources from which scripts, styles, and other resources can be loaded. The absence of this header...

CVE-2026-21833 HCL AION is susceptible to a Missing "Content-Security-Policy" header Vulnerability (CVE-2026-21833)

HCL AION is affected by a vulnerability in which the Content-Security-Policy CSP HTTP response header is not configured. CSP helps prevent attacks such as Cross-Site Scripting XSS by restricting the sources from which scripts, styles, and other resources can be loaded. The absence of this header...

Zapros has an Unbounded Content-Encoding decompression chain that allows denial of service

ImpactWho is impacted: - Any application using Zapros to make HTTP requests to untrusted servers - Applications that follow redirects to attacker-controlled hostsAttack vector: - A malicious HTTP server returns a response with many chained content encodings. When the client attempts to decode, it...

PYSEC-2026-4181 Zapros has an Unbounded Content-Encoding decompression chain that allows denial of service

Impact Who is impacted: - Any application using Zapros to make HTTP requests to untrusted servers - Applications that follow redirects to attacker-controlled hosts Attack vector: - A malicious HTTP server returns a response with many chained content encodings. When the client attempts to decode, ...