CVE-2023-4963

MEDIUM 6.4

WS Facebook Like Box Widget <= 5.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode

CVSS Score

6.4

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-79
Vendor	webshouter
Product	ws facebook like box widget
Published	Sep 15, 2023
Last Updated	Apr 8, 2026

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CVSS v3 Breakdown

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

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

webshouter / WS Facebook Like Box Widget

0 ≤ 5.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/8bebc229-9d15-439f-a8df-f68455bc5193?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/ws-facebook-likebox/trunk/includes/shortcodes.php#L22

Credits

István Márton