Magecart’s 2024 Resurgence: Skimming in the Polyfill.io Aftermath

Through 2024, digital skimming returned to threat reports’ front pages: Magecart-style attacks compromised hundreds of storefronts via compromised third-party JavaScript, supply-chain infections like polyfill.io’s June domain takeover injected malicious scripts into vast numbers of pages, and PCI DSS 4.0’s script-integrity requirements (6.4.3 and 11.6.2) approached their March 2025 enforcement deadline. This survey digests the modern skimming kill chain — injection, exfiltration, and evasion — the major 2024 campaigns, and the compliance clock turning client-side risk into boardroom math.

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F5 BIG-IP Next Central Manager: The Unauthenticated Takeover Bugs

On November 6, 2024, F5 disclosed a pair of critical bugs in BIG-IP Next Central Manager shipped in its SPK fabric: CVE-2024-23327, an unauthenticated privilege-escalation path reachable via REST API, and CVE-2024-23328, a missing-authentication flaw letting attackers create arbitrary administrator accounts. Together they enable full takeover of a management node that itself commands a fleet of application delivery hardware. This account walks both paths, the same-day patches, and the uncomfortable lineage going back to CVE-2022-1388’s iControl REST flaw.

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Ivanti Endpoint Manager RCE: Two Bugs, One Dangerous Chain

On October 16, 2024, Ivanti disclosed two vulnerabilities in Endpoint Manager (EPM) chained for pre-auth remote code execution: CVE-2024-29224, an unauthenticated SSRF rated 9.6, and CVE-2024-29226, a path traversal in a downstream service. The week’s disclosure calendar placed it days after FortiManager’s FortiJump and amid a year of Ivanti security crises — from January’s Connect Secure zero-days to September’s Cloud Service Appliance flaw. This account explains the chain mechanics, why consortium defenders pushed urgent patching, and the management-plane pattern of 2024.

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FortiManager Zero-Day (FortiJump): CISA Escalation Explained

On October 23, 2024, Fortinet confirmed CVE-2024-47575 — a CVSS 9.8 missing-authentication flaw in the FortiManager FGFM protocol that China-nexus actor UNC5850 had exploited since summer to jump from exposed managers into fleets of managed FortiGates with a custom DeepMove implant. CISA KEV-listed it within days, forcing two-week patch deadlines across federal and enterprise fleets. This account reconstructs the protocol bug, the DeepMove persistence, the fleet-jump blast radius, and the management-plane hardening it made mandatory.

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CUPS RCE: The Linux Printing Story That Went Viral Before CVEs Landed

In late September 2024, researcher Simone Margaritelli disclosed a chain of CUPS vulnerabilities — CVE-2024-47076, CVE-2024-47176 and siblings — allowing same-network attackers to register malicious printers and achieve code execution as the lp user via broadcast-trusting auto-configuration. Preceded by a hype-teaser countdown that split the community, the episode became the year’s clearest study in disclosure-process dysfunction, severity theater, and the quiet ubiquity of trust-the-LAN daemons. This account covers the chain mechanics, the honest exposure math, and what to disable today.

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