Author
Mohammed Lachhab
Mohammed Lachhab is a Security Engineer at Ostorlab, where he combines hands-on security research with content strategy. He conducts in-depth research on vulnerabilities, cybersecurity tools, and emerging threats to produce educational content that is both technically accurate and accessible. All articles are reviewed by the engineering team for technical rigor, helping Ostorlab communicate complex security topics clearly to professionals and security teams.
Can an AI Agent Prove SAST Findings at Runtime?
Static analysis flags possible bugs but cannot prove them. Runtime validation proved a Langflow authenticated RCE and corrected a libxml2 use-after-free's stated trigger conditions.
Sep 23, 2026
Bypassing Mobile App Shielding: Where Detection Ends and Enforcement Fails
Detection and enforcement are different security properties. Across five production banking apps ...
Aug 12, 2026
AI Can Run the Attack. Can You Trust the Result?
AI can produce a convincing exploit story in seconds. Runtime proof, negative controls, and human...
Aug 06, 2026
AI Pentesting Prompts That Produce Evidence, Not Just Findings
A practical guide to designing AI-assisted security testing workflows that turn scoped evidence i...
Jul 23, 2026
More by Mohammed Lachhab
CVE-2026-44109: OpenClaw Feishu Auth Bypass to RCE
A technical breakdown of CVE-2026-44109, a CVSS 9.2 Critical authentication bypass vulnerability in OpenClaw (< 2026.4.15). Two fail-open logic inversions in the Feishu/Lark plugin — one in the webhook signature validator and one in the card-action replay guard — allow an unauthenticated attacker to inject arbitrary events into OpenClaw's command dispatch engine. When the bot has execution tools enabled, this translates directly to unauthenticated remote code execution on the host machine with the privileges of the OpenClaw process.
May 07, 2026
CVE-2026-5205: Critical SSRF in Chatwoot Uploads
A deep dive into a critical Server-Side Request Forgery (SSRF) vulnerability in Chatwoot's upload endpoint (≤ v4.12.1). The /api/v1/accounts/:id/upload endpoint accepts an external_url parameter validated only by a scheme check, allowing any authenticated agent to force the server to fetch arbitrary internal URLs. The full response body is returned in-band through ActiveStorage blobs — turning the upload endpoint into a full-read proxy. Live exploitation on a DigitalOcean droplet confirmed in-band exfiltration of cloud metadata including droplet ID, hostname, SSH public keys, and full metadata bundles. Fixed in v4.13.0.
Apr 29, 2026
Twenty CRM Serverless Functions Expose Critical RCE and Permanent Unauthenticated Backdoor Risk (CVE-2026-26720) - PoC & Exploit
A technical breakdown of CVE-2026-26720, a CVSS 9.8 Critical authenticated Remote Code Execution vulnerability in Twenty CRM (≤ v1.15.0). Any workspace member can create and execute serverless functions that run unsandboxed with full access to process.env, leaking APP_SECRET, PG_DATABASE_URL, and all server-side credentials. When combined with webhook-triggered workflows exposed via PublicEndpointGuard, a single authenticated attacker can install a permanent unauthenticated RCE backdoor accessible from anywhere on the internet.
Apr 15, 2026
CVE-2026-2599: WordPress PHP Object Injection to RCE
A technical breakdown of CVE-2026-2599, a CVSS 9.8 Critical unauthenticated PHP Object Injection vulnerability in the "Contact Form Entries" WordPress plugin (≤ 1.4.7). The download_csv function deserializes untrusted user input without allowed_classes restrictions. When combined with WordPress 6.4.0-6.4.1, the built-in WP_HTML_Token class provides a complete all-public POP chain leading to full Remote Code Execution via two unauthenticated HTTP requests.
Mar 25, 2026
GHSA-cr3w-cw5w-h3fj: 1-Click RCE in Saltcorn
Analysis of GHSA-cr3w-cw5w-h3fj, a CVSS 9.7 critical XSS-to-RCE vulnerability in Saltcorn (≤ 1.5.0-beta.19). Two chained flaws, reflected XSS in route parameters and command injection in backup generation, enable remote code execution via administrator phishing.
Mar 11, 2026
CVE-2026-1357: Unauthenticated RCE in WPvivid Backup Plugin
A technical breakdown of CVE-2026-1357, a CVSS 9.8 critical unauthenticated remote code execution vulnerability in the WPvivid Backup & Migration plugin (≤ 0.9.123). Two chained flaws, a cryptographic fail-open and an unsanitized path traversal, allow arbitrary file write and shell upload without credentials.
Feb 20, 2026