GitHub Advisory DatabaseGHSA-RGCG-28XM-8MMWCross-Site Scripting in Backend Grid View
3.5 Low
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:S/C:N/I:P/A:N
6.4 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N
0.001 Low
EPSS
Percentile
21.4%
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.
Affected configurations
| CPE | Name | Operator | Version |
|---|---|---|---|
| typo3/cms | lt | 9.5.28 | |
| typo3/cms | lt | 11.3.1 | |
| typo3/cms | lt | 10.4.18 | |
| typo3/cms-core | lt | 11.3.1 | |
| typo3/cms-core | lt | 10.4.18 | |
| typo3/cms-core | lt | 9.5.28 | |
| typo3/cms-core | lt | 8.7.41 |
References
github.com/advisories/GHSA-rgcg-28xm-8mmw
github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2021-32669.yaml
github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2021-32669.yaml
github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-rgcg-28xm-8mmw
nvd.nist.gov/vuln/detail/CVE-2021-32669
typo3.org/security/advisory/typo3-core-sa-2021-011
Related
3.5 Low
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:S/C:N/I:P/A:N
6.4 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N
0.001 Low
EPSS
Percentile
21.4%