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As of 10/25/2026, Post Grid Gutenberg Blocks – PostX recorded 2 security vulnerabilities in the last 90 days, of which 1 is rated High or Critical. None of these vulnerabilities is actively exploited (KEV) according to CISA's catalog. CyStack recommends that organizations and individual users apply patches as soon as possible.
CyStack does not yet have sufficient official-source data to identify the latest version of Post Grid Gutenberg Blocks – PostX and determine which vulnerabilities affect that version.
CyStack VulnScan continuously discovers assets, validates vulnerabilities, and helps security teams prioritize remediation across the organization.
CVE-2026-96840Post Grid Gutenberg Blocks <= 5.1.0 - Unauthenticated Stored Cross-Site Scripting via display_name User FieldCVE-2026-5158PostX <= 5.0.13 - Authenticated (Contributor+) Stored Cross-Site Scripting via Post Comments BlockCVE-2026-15100Post Grid Gutenberg Blocks <= 5.0.32 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'searchnoresult' Block AttributeCVE-2026-13253Post Grid Gutenberg Blocks for News, Magazines, Blog Websites <= 5.0.31 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'moreResultsText' Block Attribute| Vulnerability | Exploitation status | Fix | Published | Severity |
|---|---|---|---|---|
CVE-2026-96840Post Grid Gutenberg Blocks <= 5.1.0 - Unauthenticated Stored Cross-Site Scripting via display_name User Field | Exploitation statusNot exploited | FixYes | Published10/10/2026 | SeverityHigh |
CVE-2026-5158PostX <= 5.0.13 - Authenticated (Contributor+) Stored Cross-Site Scripting via Post Comments Block | Exploitation statusNot exploited | FixYes | Published08/06/2026 | SeverityMedium |
CVE-2026-15100Post Grid Gutenberg Blocks <= 5.0.32 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'searchnoresult' Block Attribute | Exploitation statusNot exploited | FixYes | Published07/24/2026 | SeverityMedium |
CVE-2026-13253Post Grid Gutenberg Blocks for News, Magazines, Blog Websites <= 5.0.31 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'moreResultsText' Block Attribute | Exploitation statusNot exploited | FixYes | Published07/09/2026 | SeverityMedium |
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