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CVE-2023-4963

MEDIUM 5.4 CVSS 3.1
Published
September 15, 2023
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 WS Facebook Like Box Widget plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'ws-facebook-likebox' shortcode in versions up to, and including, 5.0 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected WordPress components

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

  • webshouter WS Facebook Like Box Widget — Up to and including 5.0
  • webshouters ws_facebook_like_box_widget — Up to and including 5.0

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/ws-facebook-likebox/trunk/includes/shortcodes.php#L22 Product
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/8bebc229-9d15-439f-a8df-f68455bc5193?source=cve Third Party Advisory
  • nvd.nist.gov Official NVD record