CISA Flags Four Actively Exploited Flaws in SharePoint, WSO2, Adobe Commerce & MikroTik
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Four serious vulnerabilities across widely-used enterprise platforms — including authentication bypasses, authorization flaws, and code injection — are being actively exploited in the wild, prompting CISA to add them to its Known Exploited Vulnerabilities catalog. The root cause pattern here is delayed or absent patch application on internet-facing and critical infrastructure systems, leaving known weaknesses open for attackers to abuse. Authentication bypass and incorrect authorization flaws are particularly dangerous because they can allow unauthenticated attackers to gain privileged access without needing stolen credentials. Federal agencies have been given hard deadlines to remediate, but private sector organizations face the same risk and should treat CISA KEV listings as urgent signals requiring immediate action.
Tactical Insight
Immediate Actions
- Apply vendor-supplied patches for CVE-2026-5430 (WSO2), CVE-2026-71362 (Adobe Commerce), CVE-2026-65660 (SharePoint), and CVE-2026-67279 (MikroTik RouterOS) as an emergency priority.
- Audit internet-facing instances of all four affected products and isolate any unpatched systems until remediation is complete.
- Review authentication and authorization logs on affected platforms for indicators of exploitation or anomalous access patterns.
Long-Term Improvements
- Establish a formal vulnerability management program that automatically ingests CISA KEV feeds and triggers patch workflows within defined SLAs.
- Maintain a continuously updated asset inventory covering all internet-facing applications, APIs, and network devices to ensure no systems are missed during patch cycles.
- Implement network segmentation to limit lateral movement opportunities if a perimeter system such as a router or API gateway is compromised.
Detection Measures
- Deploy web application firewall (WAF) rules and intrusion detection signatures targeting the known exploit patterns for these CVEs.
- Enable centralized logging and alerting for authentication failures, privilege escalations, and unexpected code execution events across affected platforms.
- Subscribe to threat intelligence feeds (e.g., CISA KEV, vendor security advisories) to receive real-time notification of newly exploited vulnerabilities.