SB2018101713 - Stored XSS in Schiocco Support Board for WordPress

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Main Vulnerability Database SB2018101713

SB2018101713 - Stored XSS in Schiocco Support Board for WordPress

Published: October 17, 2018 Updated: September 4, 2019

Security Bulletin ID SB2018101713
Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Stored cross-site scripting (CVE-ID: CVE-2018-18373)

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 file upload areas in the Chat and Help Desk sections via the "msg" in the "/wp-admin/admin-ajax.php", when action is set to "sb_ajax_add_message". A remote attacker can store the XSS payload in the database, trick the victim to visit a compromised page 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