SB2018041606 - Multiple vulnerabilities in Z-BlogPHP

Description

This security bulletin contains information about 2 vulnerabilities.

1) Cross-site scripting (CVE-ID: CVE-2018-9169)

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]

Vulnerability allows a remote attacker to perform XSS attacks.

The vulnerability is caused by an input validation error in the app_id parameter in zb_users/plugin/AppCentre/plugin_edit.php script. A remote attacker can trick the victim to follow a specially specially crafted link and execute arbitrary HTML and script code in victim's browser in security 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.

2) Cross-site request forgery (CVE-ID: CVE-2018-8893)

CWE-ID: CWE-352 - Cross-Site Request Forgery (CSRF)

CVSSv4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to perform CSRF attacks.

The vulnerability exists due to improper handling of the HTTP request origin in plugin_edit.php. A remote attacker can trick the victim into visiting a specially specially crafted web page that may result in the ability to execute arbitrary PHP code.

Remediation

Install update from vendor's website.

References

• https://xz.aliyun.com/t/2277
• https://www.secz.org/0day/2569.html