6.1 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
0.001 Low
EPSS
Percentile
33.6%
> ### 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)
Due to an encoding issue in the serialization layer, malicious markup nested in a noscript
element was not encoded correctly. noscript
is disabled in the default configuration, but might have been enabled in custom scenarios. This allows bypassing the cross-site scripting mechanism of typo3/html-sanitizer
.
Update to typo3/html-sanitizer
versions 1.5.1 or 2.1.2 that fix the problem described.
Thanks to David Klein and Yaniv Nizry who reported this issue, and to TYPO3 security team members Oliver Hader and Benjamin Franzke who fixed the issue.
CPE | Name | Operator | Version |
---|---|---|---|
typo3/html-sanitizer | lt | 2.1.2 | |
typo3/html-sanitizer | lt | 1.5.1 |