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CVE-2023-6526

MEDIUM 5.4 CVSS 3.1
Published
February 5, 2024
Last modified
June 17, 2026
NVD status
Modified
Reported by
security@wordfence.com
Weakness
CWE-79
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Description

The Meta Box – WordPress Custom Fields Framework plugin for WordPress is vulnerable to Stored Cross-Site Scripting via custom post meta values displayed through the plugin's shortcode in all versions up to, and including, 5.9.2 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 WordPress components

  • Meta Box – A Framework for Dynamic Websites Plugin · meta-box
    Confirmed match Active
    Up to and including 5.9.2
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • metabox Meta Box — Up to and including 5.9.2
  • metabox meta_box — Up to and including 5.9.2

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3030376%40meta-box&new=3030376%40meta-box&sfp_email=&sfph_mail= Patch
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/2a6bfc87-6135-4d49-baa2-e8e6291148dc?source=cve Third Party Advisory
  • nvd.nist.gov Official NVD record