CISA Confirms Hackers Exploiting WordPress Core Flaw During Software Upgrades
Summary
CISA has added a critical WordPress Core vulnerability to its Known Exploited Vulnerabilities (KEV) catalog due to active exploitation. The flaw, a TOCTOU race condition, allows for arbitrary code execution.
IFF Assessment
FOE
The active exploitation of a critical vulnerability in a widely used platform like WordPress poses a significant threat to defenders.
Severity
8.1
High
(CVSS v3.1)
CISA KEV: Listed as actively exploited. Federal patch due: November 06, 2026. Known ransomware use: Unknown.
Defender Context
Defenders need to prioritize patching this WordPress Core vulnerability immediately, as it is actively being exploited. Monitoring for signs of compromise on WordPress sites and ensuring robust security configurations are in place are crucial steps.