SB2019032202 - Cross-site scripting in Font Organizer for WordPress

Description

This security bulletin contains information about 1 vulnerability.

1) Cross-site scripting (CVE-ID: CVE-2019-9908)

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

CVSSv4: 5.1 [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]

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 passed via the "manage_font_id" to /wp-admin/options-general.php script. 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.

Example:

http://[host]/wp-admin/options-general.php?manage_font_id='"><img src=x onerror=alert(1)>&page=font-setting-admin

Remediation

Cybersecurity Help is not aware of any official remediation provided by the vendor.

References

• https://lists.openwall.net/full-disclosure/2019/02/05/8
• https://security-consulting.icu/blog/2019/02/wordpress-font-organizer-xss/
• https://wpvulndb.com/vulnerabilities/9239