MODRACXKENNETH D'SILVA

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Top Critical CVEs of 2024–2025: Web Apps, Infrastructure & Cloud

2024 and 2025 saw CVSS 10.0 vulnerabilities in Ivanti, Palo Alto, Fortinet, Jenkins, and WordPress plugins exploited within hours of disclosure. This is the complete technical reference.

By Kenneth D'SilvaReading Time: 35 min readCategory: Security & Compliance

1. The Shifting Threat Landscape of 2024–2025

The 2024–2025 vulnerability landscape was marked by the near-instantaneous weaponization of zero-day vulnerabilities. Automated scanning infrastructure maintained by state-sponsored actors and cybercrime syndicates reduced the "time-to-exploit" window from days to less than four hours following public disclosure.

From edge VPNs and CI/CD pipelines to high-volume CMS plugins, here is the technical breakdown of the most critical vulnerabilities that dominated this era.

2. Comprehensive 2024–2025 CVE Reference Table

CVE ID CVSS Target Platform Vulnerability Class
CVE-2024-3400 10.0 Palo Alto PAN-OS (GlobalProtect) Command Injection via SESSID Cookie
CVE-2024-23897 9.8 Jenkins Core (args4j CLI) Arbitrary File Read / Cryptographic Key Theft
CVE-2024-4577 9.8 PHP (Windows CGI Module) Best-Fit Code Page Argument Injection (RCE)
CVE-2024-21887 + 21893 9.1 / 8.2 Ivanti Connect Secure (VPN) SAML SSRF + Command Injection Chain
CVE-2024-28000 9.8 WordPress LiteSpeed Cache Plugin Unauthenticated Admin Privilege Escalation
CVE-2024-27956 9.9 WP-Automatic WordPress Plugin Unauthenticated SQL Injection
CVE-2024-23113 9.8 Fortinet FortiOS (fgfmd service) Format String Vulnerability (RCE)
CVE-2025-30065 10.0 Apache Parquet Java Schema Parsing Insecure Deserialization RCE

3. Deep Dive 1: Jenkins CLI Arbitrary File Read (CVE-2024-23897)

Jenkins is the backbone of CI/CD pipelines for thousands of ecommerce and cloud software teams. In January 2024, SonarSource discovered that Jenkins' built-in command line interface parser (args4j) expanded arguments starting with the @ character into file contents by default.

An unauthenticated attacker could read the first few lines of arbitrary files on the Jenkins controller (e.g. @/etc/passwd or @/var/jenkins_home/secrets/master.key). By extracting the master encryption key, attackers decrypted stored GitHub deployment tokens, AWS credentials, and SSH private keys, enabling full supply-chain takeover.

4. Deep Dive 2: PHP Windows CGI Argument Injection (CVE-2024-4577)

In June 2024, DEVCORE disclosed a critical vulnerability affecting PHP running on Windows operating systems in CGI mode (such as XAMPP or IIS FastCGI setups). Due to a Windows feature called "Best-Fit character encoding", unicode characters like \xAD (soft hyphen) were silently converted into ASCII hyphens (-).

Attackers bypassed Apache argument escapes and passed command-line flags directly to the PHP binary, such as -d allow_url_include=1 -d auto_prepend_file=php://input, achieving instantaneous remote code execution:


POST /index.php?%ADd+allow_url_include%3D1+%ADd+auto_prepend_file%3Dphp://input HTTP/1.1
Host: windows-store.com
Content-Type: application/x-www-form-urlencoded

<?php system("whoami"); ?>

5. Deep Dive 3: WordPress Plugin Mass Exploits (LiteSpeed Cache & WP-Automatic)

With over 6 million active installations, LiteSpeed Cache (CVE-2024-28000) suffered a critical flaw in its crawler simulation feature. Due to weak hash generation based on known timestamps, unauthenticated attackers could generate valid administrator user IDs and create rogue administrator accounts on WooCommerce stores within a single HTTP request.

6. Strategic Defense Architecture for 2026 and Beyond

  • Eliminate Direct Edge Exposure: Place all CI/CD controllers (Jenkins, GitLab), administrative interfaces, and VPN management portals behind Cloudflare Access, AWS Verified Access, or strict IP whitelisting.
  • Continuous External Attack Surface Management (EASM): Automate asset inventory to identify forgotten staging subdomains, unpatched WordPress blogs, or exposed API gateways.
  • Rapid Patch Automation: Implement immutable infrastructure (containers and AMI baselines) that allow rolling zero-downtime updates within hours of critical CVE releases.

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