6.4

CVE-2026-15100

Post Grid Gutenberg Blocks <= 5.0.32 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'searchnoresult' Block Attribute

Post Grid Gutenberg Blocks <= 5.0.32 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'searchnoresult' Block Attribute

The Post Grid Gutenberg Blocks – PostX plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'searchnoresult' Block Attribute in all versions up to, and including, 5.0.32 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This is particularly concerning in a cross-privilege scenario where a Contributor creates a pending or draft post containing the malicious block attribute, which then executes arbitrary JavaScript in the browser session of an Editor or Administrator who previews that post.
Mögliche Gegenmaßnahme
Post Grid Gutenberg Blocks – PostX: Update to version 5.0.33, or a newer patched version
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
Herstellerwpxpo
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Produkt Post Grid Gutenberg Blocks – PostX
Default Statusunaffected
Version <= 5.0.32
Version 0
Status affected
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Weitere Schwachstelleninformationen
SystemWordPress Plugin
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Produkt Post Grid Gutenberg Blocks – PostX
Version *-5.0.32
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.19% 0.093
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security@wordfence.com 6.4 3.1 2.7
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

https://www.wordfence.com/threat-intel/vulnerabilities/id/1f645d0c-d641-4fff-a4f4-33c037de30e9?source=cve
https://plugins.trac.wordpress.org/browser/ultimate-post/tags/5.0.32/blocks/Advanced_Search.php#L116
https://plugins.trac.wordpress.org/browser/ultimate-post/tags/5.0.32/blocks/Advanced_Search.php#L107
https://plugins.trac.wordpress.org/browser/ultimate-post/tags/5.0.32/classes/Blocks.php#L231
https://plugins.trac.wordpress.org/changeset?reponame=&old=3613430%40ultimate-post&new=3613430%40ultimate-post
https://www.wordfence.com/threat-intel/vulnerabilities/id/1f645d0c-d641-4fff-a4f4-33c037de30e9
Third Party Advisory