MEDIUM SeverityCVSS 3.16.4CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

CVE-2026-6252

Last updated May 14, 2026 · Published May 14, 2026

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

1 listed

mr2p:Meta Field Block – Display custom fields in the Block Editor without coding

Mappings

CWE

CWE-79

CAPEC

None listed.

Research

Cross-Site Scripting (XSS)Covers reflected, stored, and DOM based XSS risks and why they remain high impact. Provides prevention…

Training

XSS in React, Vue and Server ComponentsCross-site scripting in modern component frameworks and how to prevent it.

CVE-2026-6252

Description

Affected products

Mappings

Related