SB2024102135 - Cross-site scripting in WordPress Social Share Buttons plugin

Description

This security bulletin contains information about 1 security vulnerability.

1) Cross-site scripting (CVE-ID: CVE-2024-9219)

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in the add_query_arg function. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Remediation

Install update from vendor's website.

References

• https://www.wordfence.com/threat-intel/vulnerabilities/id/b19aa8ca-0ce8-4a9a-8f71-7d7e67e8f99b?source=cve
• https://plugins.trac.wordpress.org/tags/1.19/share-button/trunk/admin/page_editor.php#L78
• https://plugins.trac.wordpress.org/browser/share-button/tags/1.19/admin/page_editor.php#L60
• https://plugins.trac.wordpress.org/changeset/3171315/