CVE-2021-32669
Cross-Site Scripting in Backend Grid View
6.4
MEDIUM
CVSS 3.1
EPSS 0.37%
Description
### Problem Failing to properly encode settings for _backend layouts_, the corresponding grid view is vulnerable to persistent cross-site scripting. A valid backend user account is needed to exploit this vulnerability. ### Solution Update to TYPO3 versions 8.7.41 ELTS, 9.5.28, 10.4.18, 11.3.1 that fix the problem described. ### Credits Thanks to TYPO3 core merger Oliver Bartsch who reported and fixed the issue.
How to fix CVE-2021-32669
To remediate CVE-2021-32669, upgrade the affected package to a fixed version below.
- —upgrade to 8.7.40 or later
- —upgrade to 10.4.18 or later
- —upgrade to 8.7.41 or later
Is CVE-2021-32669 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- >= 8.0.0, < 8.7.40, >= 9.0.0, < 9.5.28, >= 10.0.0, < 10.4.17, >= 11.0.0, < 11.3.0
- >= 10.0.0, < 10.4.18
- >= 8.0.0, < 8.7.41
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 |