CyberMap Blog
Writing and analysis on offensive security, compliance and defense.
CVE-2026-25769 Analysis: Remote Code Execution in Wazuh Cluster via Insecure Deserialization
1. Introduction – Executive Summary Security monitoring platforms are among the most privileged systems on a corporate network: they collect logs from every endpoint, monitor file integrity, and — when needed — push commands back down to those endpoints. Compromising such a platform therefore carries consequences far beyond the loss of a single server. CVE-2026-25769 […]
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CVE-2026-31431 Technical Analysis: The “Copy Fail” Local Privilege Escalation Vulnerability in the Linux Kernel
1. Introduction – Executive Summary In the cybersecurity world, local privilege escalation (LPE) vulnerabilities are usually carried out through file permissions, misconfigured services, or complex memory overflows. CVE-2026-31431 — disclosed publicly in late April 2026 and codenamed “Copy Fail” — breaks that pattern entirely. It abuses the Linux kernel’s zero-copy mechanisms and cryptographic pipelines to […]
WordPress REST API Batch Endpoint Exploit Chain (wp2shell): From Route Confusion to Remote Code Execution
CVE: CVE-2026-63030, CVE-2026-60137CWE: CWE-436, CWE-89CVSS: 9.8 (Critical)Affected versions: WordPress 6.9.0–6.9.4, 7.0.0–7.0.1Fixed in: 6.9.5 / 7.0.2 / 6.8.6Vulnerability Chain codename: wp2shell A content management system that powers a large share of the public web was, in its default installation, fully compromisable by an attacker holding no account and requiring no plugins to be present. The only […]
Grand Larceny Auto — Client-Side Trust Bypass to Hardcoded Secret Disclosure
Room: Grand Larceny Auto A locally-installed, single-player crime-simulator game hides a bonus reward behind an in-game vault that the game itself states can only be opened by reaching a police “wanted” reputation level one step higher than the maximum the game ever lets a player reach through normal play. Anyone willing to open the game’s […]
Fools Mate: Revenge — Prototype Pollution to Global Authorization Bypass
Room: Fool’s Mate: Revenge A browser-based puzzle app let any visitor claim a reward that was meant to be granted only to accounts the operator had specifically approved, without ever creating an account, logging in, or guessing a credential. One crafted request was enough to flip that approval flag — and because of where the […]
Technically Identical, Legally Opposite: The Fine Line Between Penetration Testing and Cybercrime
A question frequently arises in conversations with enterprise clients: “If the actions performed by penetration testing professionals technically resemble a cyberattack, how is this service considered legal?” This question points to one of the fundamental paradoxes of the cybersecurity industry. Indeed, the tools, methods, and techniques used by a penetration tester and a cybercriminal are […]
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