CVE

CVE-2016-3081

Apache Struts 2.3.19 to 2.3.20.2, 2.3.21 to 2.3.24.1, and 2.3.25 to 2.3.28, when Dynamic Method Invocation is enabled, allow remote attackers to execute arbitrary code via method: prefix, related to chained expressions.

MITRE ATT&CK TTPs 8

T1003

OS Credential Dumping

Command and Scripting Interpreter

Execution

T1071

Application Layer Protocol

External Remote Services

Persistence

T1190

Exploit Public-Facing Application

Initial Access

T1558

Steal or Forge Kerberos Tickets

Credential Access

Source Articles

Flax Typhoon Exploits Five Flaws as CISA Sets October 11 Deadline for Federal Agencies

The China-linked threat actor Flax Typhoon has exploited five vulnerabilities in ProFTPD, ONLYOFFICE Docs, Strapi, Apache Struts, and ISC BIND to gain initial access to organizations and exfiltrate sensitive data. These vulnerabilities were added to CISA's Known Exploited Vulnerabilities (KEV) catalog, and federal agencies are mandated to patch or discontinue use by October 11, 2026. The attacks involve scanning tools, cross-site scripting, password spraying on Microsoft Exchange servers, persistence via VPN software, and data exfiltration using scripts.

hacker-news Oct 9, 2026