The Osom Blocks – Custom Post Type listing block plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘class_name’ parameter in all versions up to, and including, 1.2.1 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.
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Fri, 27 Jun 2025 14:15:00 +0000
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Fri, 27 Jun 2025 07:45:00 +0000
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Description | The Osom Blocks – Custom Post Type listing block plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘class_name’ parameter in all versions up to, and including, 1.2.1 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. | |
Title | Osom Blocks <= 1.2.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via class_name Parameter | |
Weaknesses | CWE-79 | |
References |
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Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: Wordfence
Published: 2025-06-27T07:22:22.816Z
Updated: 2025-06-27T13:50:10.976Z
Reserved: 2025-06-09T16:00:30.622Z
Link: CVE-2025-5940

Updated: 2025-06-27T13:50:07.281Z

Status : Awaiting Analysis
Published: 2025-06-27T08:15:22.857
Modified: 2025-06-30T18:38:48.477
Link: CVE-2025-5940

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