CVE-2021-32667
Cross-Site Scripting in Page Preview
6.4
MEDIUM
CVSS 3.1
EPSS 0.60%
Description
TYPO3 is an open source PHP based web content management system. Versions 9.0.0 through 9.5.28, 10.0.0 through 10.4.17, and 11.0.0 through 11.3.0 have a cross-site scripting vulnerability. When _Page TSconfig_ settings are not properly encoded, corresponding page preview module (_Web>View_) is vulnerable to persistent cross-site scripting. A valid backend user account is needed to exploit this vulnerability. TYPO3 versions 9.5.29, 10.4.18, 11.3.1 contain a patch for this issue.
How to fix CVE-2021-32667
To remediate CVE-2021-32667, upgrade the affected package to a fixed version below.
- —upgrade to 10.4.18 or later
- —upgrade to 9.5.28 or later
Is CVE-2021-32667 being exploited?
Low — EPSS is 0.6%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- >= 10.0.0, < 10.4.18
- >= 9.0.0, < 9.5.28
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.4 | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N |