🔐 CVE Alert

CVE-2026-1273

HIGH 7.2

PostX <= 5.0.8 - Authenticated (Administrator+) Server-Side Request Forgery via REST API Endpoints

CVSS Score
7.2
EPSS Score
0.0%
EPSS Percentile
0th

The Post Grid Gutenberg Blocks for News, Magazines, Blog Websites – PostX plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 5.0.8 via the `/ultp/v3/starter_dummy_post/` and `/ultp/v3/starter_import_content/` REST API endpoints. This makes it possible for authenticated attackers, with Administrator-level access and above, to make web requests to arbitrary locations originating from the web application and can be used to query and modify information from internal services.

CWE CWE-918
Vendor wpxpo
Product post grid gutenberg blocks for news, magazines, blog websites – postx
Published Mar 4, 2026
Last Updated Apr 8, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability

Affected Versions

wpxpo / Post Grid Gutenberg Blocks for News, Magazines, Blog Websites – PostX
0 ≤ 5.0.8

References

NVD ↗ CVE.org ↗ EPSS Data ↗
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/afe6d4ac-1712-415e-9995-cb7c8fe4e1a0?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/ultimate-post/tags/5.0.5/classes/Importer.php#L196 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/ultimate-post/trunk/classes/Importer.php#L196 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/ultimate-post/trunk/classes/Importer.php#L261 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/ultimate-post/tags/5.0.5/classes/Importer.php#L261 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3469409%40ultimate-post&new=3469409%40ultimate-post&sfp_email=&sfph_mail=

Credits

Mohammad Amin Hajian Pouria Shahba