DOM-based cross-site scripting in WebSpellChecker Dialog - #VU26197
Published: March 18, 2020
Vulnerability identifier: #VU26197
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear
CVE-ID: N/A
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: WebSpellChecker
Affected software:
WebSpellChecker Dialog
WebSpellChecker Dialog
Detailed vulnerability description
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 within WYSIWYG mode in WebSpellChecker Dialog plugin for CKEditor. A remote attacker can trick the victim to execute certain actions with content in WYSIWYG mode 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 updates from vendor's website.