Описание
Bypassing Cross-Site Scripting Protection in TYPO3 HTML Sanitizer
CVSS:
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N/E:F/RL:O/RC:C(4.4)
Problem
DOM processing instructions are not handled correctly. This allows bypassing the cross-site scripting mechanism of typo3/html-sanitizer.
Solution
Update to typo3/html-sanitizer versions 1.5.3 or 2.1.4 that fix the problem described.
Credits
Thanks to Yaniv Nizry and Niels Dossche who reported this issue, and to TYPO3 core & security team member Oliver Hader who fixed the issue.
References
Пакеты
typo3/html-sanitizer
>= 1.0.0, <= 1.5.2
1.5.3
typo3/html-sanitizer
>= 2.0.0, <= 2.1.3
2.1.4
Связанные уязвимости
TYPO3 is an open source PHP based web content management system released under the GNU GPL. In affected versions DOM processing instructions are not handled correctly. This allows bypassing the cross-site scripting mechanism of typo3/html-sanitizer. This vulnerability has been addressed in versions 1.5.3 and 2.1.4. Users are advised to upgrade. There are no known workarounds for this vulnerability.