Cross-site scripting in HTML Sanitizer - CVE-2023-47125
Published: November 14, 2023 / Updated: June 9, 2026
Vulnerability identifier: #VU134017
CSH Severity: Medium
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:Green
CVE-ID: CVE-2023-47125
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: TYPO3
Affected software:
HTML Sanitizer
HTML Sanitizer
Detailed vulnerability description
The vulnerability allows a remote attacker to conduct cross-site scripting attacks.
The vulnerability exists due to improper neutralization of input during web page generation in DOM processing instruction handling in the HTML sanitizer when processing crafted HTML content. A remote attacker can supply specially crafted HTML content to conduct cross-site scripting attacks.
User interaction is required for the crafted content to be rendered.
How to mitigate CVE-2023-47125
Install security update from vendor's website.