SB2019093002 - Stored cross-site scripting in Zoner Real Estate theme for WordPress

Description

This security bulletin contains information about 1 vulnerability.

1) Stored cross-site scripting (CVE-ID: N/A)

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:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P/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 "Address" input field on the "Local information" block. A remote attacker can inject 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.

PoC:

Payload Sample: "><img src=x onerror=alert('Greetings from m0ze');window.location.replace('http://defcon.su');>

Remediation

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

References

• https://www.exploit-db.com/exploits/47436/
• https://wpvulndb.com/vulnerabilities/9934/
• https://themeforest.net/item/zoner-real-estate-wordpress-theme/9099226