PT-2023-31275 · WordPress · Ws Facebook Like Box Widget

István Márton + 1 · Published 2023-09-14 · Updated 2023-09-19 · CVE-2023-4963

Positive Technologies (AI Summary)

CVSS v3.1

6.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions WS Facebook Like Box Widget for WordPress plugin versions up to, and including, 5.0

Description The issue is related to Stored Cross-Site Scripting via the 'ws-facebook-likebox' shortcode due to insufficient input sanitization and output escaping on user-supplied attributes. This allows 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.

Recommendations For versions up to, and including, 5.0, consider disabling the 'ws-facebook-likebox' shortcode until a patch is available to prevent exploitation. Restrict access to pages that use this shortcode to minimize the risk of arbitrary web script execution. Avoid using user-supplied attributes in the 'ws-facebook-likebox' shortcode until the issue is resolved.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2023-4963

Affected Products

Ws Facebook Like Box Widget

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2023-4963 · Security Note
• https://osv.dev/vulnerability/CVE-2023-4963 · Vendor Advisory
• https://twitter.com/CVEnew/status/1702515933166620841 · Twitter Post
• https://wordfence.com/threat-intel/vulnerabilities/id/8bebc229-9d15-439f-a8df-f68455bc5193?source=cve · Note
• https://twitter.com/TechFishNews/status/1704383326508007633 · Twitter Post
• https://plugins.trac.wordpress.org/browser/ws-facebook-likebox/trunk/includes/shortcodes.php#L22 · Note