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Decade-old PostgreSQL flaw turns backup account into a backdoor
Cyera disclosed CVE-2026-6471, a decade-old PostgreSQL flaw letting REPLICATION-attribute accounts achieve RCE and superuser compromise, patched August 13.
Cyera Research's 'PostGREShell' flaw exists in PostgreSQL's logical replication output plugin loading, where the replication code path never called the library-path security check, allowing path traversal or UNC paths to load arbitrary code. A low-privilege backup account can achieve code execution on Windows, Linux, and macOS, then escalate to superuser with persistent backdoor access. CVE-2026-6471 affects versions back to PostgreSQL 9.4 (2014) and was patched in releases 18.6, 17.11, 16.15, 15.19, and 14.24 on August 13. CVSS is 7.2, and no exploitation of this specific CVE has been confirmed, though VirusTotal hunting found 114 malicious PostgreSQL plugins.
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5 Million WordPress Sites Affected by SQL Injection Vulnerability in All-in-One WP Migration and Backup WordPress Plugin
Unauthenticated second-order SQL injection found in All-in-One WP Migration and Backup plugin with 5+ million active installs.
Wordfence received a submission on August 14, 2026 for an unauthenticated second-order SQL injection vulnerability in the All-in-One WP Migration and Backup WordPress plugin. The plugin has more than 5 million active installations. The disclosure text does not include a CVE id, a patch version, or evidence of exploitation.
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ZDI-26-626: Backblaze Personal Computer Backup bzfilelist Link Following Denial-of-Service Vulnerability
ZDI published ZDI-26-626 for a local denial-of-service flaw (CVE-2026-19820, CVSS 6.1) in Backblaze Personal Computer Backup's bzfilelist component.
The Zero Day Initiative published advisory ZDI-26-626 describing a link-following denial-of-service vulnerability in the bzfilelist component of Backblaze Personal Computer Backup. Local attackers must first execute low-privileged code on the target system to trigger the condition. The issue carries a CVSS score of 6.1 and is tracked as CVE-2026-19820.
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Week in review: Veeam Backup & Replication RCE could soon be exploited, Microsoft fixes 4 0-days
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Week in review: Veeam fixes RCE flaw in backup management platform, Patch Tuesday forecast
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Veeam Availability Orchestrator v2 to help orgs address operational, DR and data migration scenarios
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