[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$finlykVi-0OTn8LjHuh3lZqlgqv92GqEZ3-8w_IsC9uk":3},{"lesson":4},{"id":5,"slug":6,"article_id":7,"title":8,"body":9,"prevention":10,"framework_refs":11,"status":21,"created_at":22,"published_at":23,"article":24,"tags":28,"podcasts":47},"4f48c4e2-9f1b-4c1c-a6f1-e49177313dee","broken-access-control-exposes-meta-customer-support-data","70d1779a-ffce-4b80-a392-dc11488fb95c","Broken Access Control Exposes Meta Customer Support Data","A critical broken access control flaw in Meta's support infrastructure left customer support conversations — including emails and chats — accessible without proper authorization checks. Missing authorization controls are among the most dangerous vulnerability classes because they can silently expose sensitive user data at scale without triggering obvious alarms. The three-month gap between discovery (January) and patch (April) highlights the risk of delayed remediation even when a responsible disclosure process is in place. This incident underscores that large platforms with complex internal tooling are just as susceptible to foundational security flaws as smaller organizations.","**Immediate actions:**\n- Audit all internal and customer-facing APIs for missing or improperly enforced authorization checks.\n- Implement automated access control testing (e.g., IDOR fuzzing) as part of every deployment pipeline.\n\n**Long-term improvements:**\n- Adopt a Zero Trust architecture requiring explicit authorization verification for every request, regardless of origin.\n- Establish a maximum remediation SLA for critical vulnerabilities (e.g., 30 days) and track compliance via a vulnerability management platform.\n- Conduct regular third-party penetration tests specifically targeting access control logic in support and internal tooling systems.\n\n**Detection measures:**\n- Deploy anomaly detection on data access patterns to flag bulk or unauthorized retrieval of customer support records.\n- Ensure all access to sensitive customer data is logged with user identity, timestamp, and resource accessed for forensic traceability.",[12,13,14,15,16,17,18,19,20],"OWASP Top 10: A01 – Broken Access Control","NIST SP 800-53: AC-3 (Access Enforcement)","NIST SP 800-53: AC-6 (Least Privilege)","NIST SP 800-53: RA-5 (Vulnerability Monitoring and Scanning)","CIS Control 6: Access Control Management","CIS Control 7: Continuous Vulnerability Management","GDPR Article 25: Data Protection by Design and by Default","GDPR Article 32: Security of Processing","GDPR Article 33: Notification of a Personal Data Breach","published","2026-07-21T12:20:57.412331+00:00","2026-07-21T12:20:57.116+00:00",{"id":7,"url":25,"slug":26,"title":27},"https:\u002F\u002Fwww.securityweek.com\u002Fmeta-pays-78000-bounty-for-vulnerability-exposing-customer-support-data\u002F","meta-paid-78-000-bounty-for-vulnerability-exposing-customer-support-data-0450ef","Meta Paid $78,000 Bounty for Vulnerability Exposing Customer Support Data",[29,35,41],{"id":30,"name":31,"slug":32,"description":33,"color":34},"05757c8d-6b93-4194-b35d-7359e7d33b0e","Vulnerability Management","vulnerability-management","Missing scans, no risk prioritization","#fb923c",{"id":36,"name":37,"slug":38,"description":39,"color":40},"1ec88fde-2d0f-4ed8-932a-33f5ccc0fdc7","Access Control","access-control","Excessive privileges, missing MFA, weak auth","#f97316",{"id":42,"name":43,"slug":44,"description":45,"color":46},"c8b843a5-d5a7-41d1-8d3b-cabded09d2ef","Data Protection","data-protection","Unencrypted data, missing DLP, poor classification","#3b82f6",[]]