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6.4 Medium

CVE-2026-6252 The Meta Field Block plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'tagName' block attribute…

Description

The Meta Field Block plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'tagName' block attribute in all versions up to, and including, 1.5.2 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.

Affected products and versions

Product Affected versions Fixed in
Meta Field Block – Display custom fields in the Block Editor without coding 1.5 earliest → 1.5.2 No fix stated

Other CVEs of Meta Field Block – Display custom fields in the Block Editor without coding

The 3 CVEs of Meta Field Block – Display custom fields in the Block Editor without coding →
CVE-2026-3173 The Meta Field Block plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and… 6.5 Medium CVE-2024-13362 Multiple plugins and/or themes for WordPress are vulnerable to Reflected Cross-Site Scripting via the url parameter in… 6.1 Medium
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