[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fdVwhk2Z9P-MXfNnemjaShD07IAEEdjDn-sQH2pXHstM":3},{"lesson":4},{"id":5,"slug":6,"article_id":7,"title":8,"body":9,"prevention":10,"framework_refs":11,"framework_notes":19,"status":27,"created_at":28,"published_at":29,"article":30,"tags":34,"podcasts":47,"controls":48},"cce332f7-3ba0-4c77-a80e-f93e51102a4e","wordpress-core-updater-race-condition-enables-unauthenticated-rce-even-after-patching","3813477b-1817-4eb5-af60-62bb07849fe1","WordPress Core Updater Race Condition Enables Unauthenticated RCE Even After Patching","A race condition flaw (CVE-2026-119977) lurking in WordPress's core update mechanism since version 2.7 allows unauthenticated attackers to inject and execute PHP code during the update unpacking process — meaning the act of patching itself can be exploited. Even sites that have upgraded to the fixed version 7.1.4 may remain exposed if the update process was initiated from certain older versions. This matters because CISA has confirmed active exploitation, turning a routine maintenance task into an attack vector. Organizations relying solely on 'apply the latest update' as their security strategy are reminded that patch integrity and delivery mechanisms must themselves be hardened.","**Immediate actions:**\n- Temporarily disable public-facing WordPress update triggers and apply the 7.1.4 patch via a controlled, offline or staging-first deployment process to avoid exploitation during unpacking.\n- Audit all WordPress instances in your environment to confirm whether they transitioned through a vulnerable intermediate version during the update path.\n- Apply Web Application Firewall (WAF) rules to block unauthenticated POST requests to WordPress core update endpoints while patching is in progress.\n\n**Long-term improvements:**\n- Implement a formal patch validation process that tests update delivery mechanisms — not just the patch content — in isolated environments before production rollout.\n- Maintain an accurate, continuously updated inventory of all CMS versions and plugins across your web estate to enable rapid response to actively exploited CVEs.\n- Enforce the principle of least privilege on web server processes so that even successful PHP code execution cannot escalate to full system compromise.\n\n**Detection measures:**\n- Deploy file integrity monitoring (FIM) on WordPress core directories to alert on unexpected file writes during or after the update process.\n- Enable centralized logging of web server events and alert on anomalous PHP execution patterns, especially those originating from the update unpacker path.",[12,13,14,15,16,17,18],"CIS Control 7: Continuous Vulnerability Management","NIST SP 800-53 SI-2: Flaw Remediation","OWASP A06:2021 Vulnerable and Outdated Components","ISO\u002FIEC 27001:2022 A.8.8: Management of technical vulnerabilities","NIST CSF 2.0 PR.AA: Identity Management, Authentication, and Access Control","NIS2 Article 21(2)(b)","PCI DSS Requirement 6",{"NIS2 Article 21(2)(b)":20,"PCI DSS Requirement 6":21,"NIST SP 800-53 SI-2: Flaw Remediation":22,"OWASP A06:2021 Vulnerable and Outdated Components":23,"CIS Control 7: Continuous Vulnerability Management":24,"ISO\u002FIEC 27001:2022 A.8.8: Management of technical vulnerabilities":25,"NIST CSF 2.0 PR.AA: Identity Management, Authentication, and Access Control":26},"NIS2 requires entities to implement incident handling and vulnerability management practices; the active exploitation status confirmed by CISA obligates in-scope organisations to treat this as an urgent risk requiring immediate remediation and incident readiness.","PCI DSS Requirement 6 mandates that organisations develop and maintain secure systems by applying security patches promptly and ensuring the patch process itself does not introduce risk — directly applicable where WordPress handles any payment-adjacent web content.","SI-2 requires organisations to identify, report, and correct information system flaws — critically including verifying that the patch delivery and installation process is itself secure, which this race condition violates.","Sites running any WordPress version older than 7.1.4 (or those that updated through a vulnerable path) represent exactly the outdated component risk OWASP A06 warns against, especially where CMS inventories are not actively maintained.","This flaw has existed since WordPress 2.7 and is now actively exploited; a continuous vulnerability management programme with tracked CVE remediation deadlines would have identified and prioritised this long-standing risk before CISA listed it as exploited.","A.8.8 mandates timely identification and remediation of technical vulnerabilities; the 15+ year presence of this flaw in WordPress core indicates that vulnerability management processes failed to surface or prioritise it until active exploitation forced the issue.","The vulnerability allows unauthenticated attackers to execute PHP code, highlighting a failure to enforce authentication controls around sensitive core update mechanisms — a gap PR.AA controls are designed to prevent.","published","2026-11-04T18:21:53.625992+00:00","2026-11-04T18:21:53.595+00:00",{"id":7,"url":31,"slug":32,"title":33},"https:\u002F\u002Fwww.cyberkendra.com\u002F2026\u002F11\u002Fcve-2026-119977-wordpress-core-update-race-rce.html","cve-2026-119977-wordpress-7-1-4-update-can-still-expose-rce-557df7","CVE-2026-119977: WordPress 7.1.4 Update Can Still Expose RCE",[35,41],{"id":36,"name":37,"slug":38,"description":39,"color":40},"05757c8d-6b93-4194-b35d-7359e7d33b0e","Vulnerability Management","vulnerability-management","Missing scans, no risk prioritization","#fb923c",{"id":42,"name":43,"slug":44,"description":45,"color":46},"af7fce9e-1ce8-4156-93bc-09dcfbfdf29d","Patch Management","patch-management","Unpatched vulnerabilities, delayed updates","#ef4444",[],[49,52],{"slug":38,"name":50,"problem":51},"Vulnerability scanning and prioritisation","You know which systems are vulnerable, and which ones to fix first.",{"slug":44,"name":53,"problem":54},"Automated patch management","Known holes get closed in days, not months."]