SB2023111494 - Cross-site scripting in HTML Sanitizer

Description

This security bulletin contains information about 1 vulnerability.

1) Cross-site scripting (CVE-ID: CVE-2023-47125)

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSSv4: 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

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.

Remediation

Install update from vendor's website.

References

• https://github.com/TYPO3/html-sanitizer/security/advisories/GHSA-mm79-jhqm-9j54
• https://typo3.org/security/advisory/typo3-core-sa-2023-007