CISA adds exploited WordPress Core race-condition flaw CVE-2026-119977 to KEV catalog
An exploited flaw in WordPress core turns routine CMS maintenance into an immediate patching task for any organisation with a public website, whether or not it is bound by the federal directive. Marketing, communications and managed hosting teams are the most exposed because these sites often sit outside central IT patch cycles. Security leaders should confirm today which sites run WordPress, who owns them and how quickly core updates can be applied.
What Happened
CISA added CVE-2026-119977, a WordPress Core time-of-check time-of-use race condition vulnerability, to its Known Exploited Vulnerabilities catalog on the basis of evidence of active exploitation. Under BOD 26-04, federal civilian agencies must prioritise rapid remediation of KEV-listed vulnerabilities on publicly exposed assets that grant total control after exploitation. CISA encourages all organisations to adopt risk-based vulnerability management and prioritise KEV remediation.
Why It Matters
An exploited flaw in WordPress core turns routine CMS maintenance into an immediate patching task for any organisation with a public website, whether or not it is bound by the federal directive. Marketing, communications and managed hosting teams are the most exposed because these sites often sit outside central IT patch cycles. Security leaders should confirm today which sites run WordPress, who owns them and how quickly core updates can be applied.
Sources
- CISA (opens in a new tab): CISA Adds One Known Exploited Vulnerability to Catalog (2026-11-03)
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Key Terms
- Known Exploited Vulnerabilities (KEV) catalog: The Known Exploited Vulnerabilities catalog is a list maintained by the US Cybersecurity and Infrastructure Security Agency (CISA) of...
- CVE: A CVE (Common Vulnerabilities and Exposures) identifier is a unique public reference, such as CVE-2026-12345, assigned to a specific...
Filed under Defense and National Security, Cybersecurity and AI Threats, Government and National Security, CISA.
This story is part of the Laurenceo Intelligence briefing for 4 November 2026, a daily sourced briefing on AI, technology and enterprise risk published in Bermuda by Laurenceo, founded by Jorai Laurenceo. It is produced by an automated research pipeline and checked before publication; how this is made. General information only, not legal, regulatory or financial advice.