Cross-site scripting in TYPO3 - #VU16752
Published: December 28, 2018
Vulnerability identifier: #VU16752
CSH Severity: Low
CVSS v4.0: 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/E:U/U:Clear
CVE-ID: N/A
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: TYPO3
Affected software:
TYPO3
TYPO3
Detailed vulnerability description
The vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists in the HTML parser due to insufficient sanitization of user-supplied data in the Notes column of the Alarms section. A remote attacker can switch CKEditor to source mode, 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.
Remediation
The vulnerability has been fixed in the version 8.7.21 and 9.5.2.