Name: CVE-2026-1273: Server-Side Request Forgery (SSRF)
Creator: Rapid7
Published: 2026-03-04T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-1273, CVSS 7.2, EPSS 0.00048

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.

CVSS Details

CVSS 3.1 Base Score: 7.2
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Ultimate Post Plugin	—	Update ultimate-post plugin to version 5.0.9, or a newer patched version	Mar 4, 2026	Mar 3, 2026

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CVSS Details

Covered by Rapid7

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