On 3 November 2026 CISA added CVE-2026-119977, a WordPress Core TOCTOU race-condition flaw, to its Known Exploited Vulnerabilities Catalog. The listing says unauthenticated attackers can execute code during full-package upgrades via predictable, web-accessible staging paths. U.S. federal agencies must remediate quickly; CISA urges all organisations to prioritise WordPress Core updates.
What it means: WordPress underpins many Greek corporate and public sites. A core flaw during upgrades is especially dangerous because it hits a maintenance window many treat as safe. Teams should apply official Core updates promptly, restrict access to staging/upgrade paths and review logs for suspicious activity before and after patching. Managed hosts and agencies should notify clients on shared upgrade plans. No exploitation steps are provided; only remediation guidance. For Greek businesses and public bodies this means a practical review of contracts, timelines and compliance duties, and it is not investment or legal advice. IT, finance and compliance teams should document owners, review cycles and fallback processes before wider adoption or a vendor change. For Greek businesses and public bodies this means a practical review of contracts, timelines and compliance duties, and it is not investment or legal advice. IT, finance and compliance teams should document owners, review cycles and fallback processes before wider adoption or a vendor change.
Related service: Custom software
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