SB2024110150 - Cross-site scripting in Subscribe to Comments plugin for WordPress

Description

This security bulletin contains information about 1 vulnerability.

1) Cross-site scripting (CVE-ID: CVE-2024-8792)

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear

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. 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/a7566ac1-9ae2-44d2-8ad1-029957870992?source=cve
• https://plugins.trac.wordpress.org/browser/subscribe-to-comments/trunk/subscribe-to-comments.php#L1470
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3177660%40subscribe-to-comments%2Ftrunk&old=1198281%40subscribe-to-comments%2Ftrunk&sfp_email=&sfph_mail=