CVE-2021-21340
published 2021-03-23CVE-2021-21340: TYPO3 is an open source PHP based web content management system. In TYPO3 before versions 10.4.14, 11.1.1 it has been discovered that database fields used as…
PriorityP426medium5.4CVSS 3.1
AVNACLPRLUIRSCCLILAN
EPSS
0.87%
54.3th percentile
TYPO3 is an open source PHP based web content management system. In TYPO3 before versions 10.4.14, 11.1.1 it has been discovered that database fields used as _descriptionColumn_ are vulnerable to cross-site scripting when their content gets previewed. A valid backend user account is needed to exploit this vulnerability. This is fixed in versions 10.4.14, 11.1.1 .
Affected
10 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| typo3 | cms | >= 10.0.0 < 10.4.14 | 10.4.14 |
| typo3 | cms | >= 11.0.0 < 11.1.1 | 11.1.1 |
| typo3 | cms-backend | >= 10.0.0 < 10.4.14 | 10.4.14 |
| typo3 | cms-backend | >= 11.0.0 < 11.1.1 | 11.1.1 |
| typo3 | cms-core | >= 10.0.0 < 10.4.14 | 10.4.14 |
| typo3 | cms-core | >= 11.0.0 < 11.1.1 | 11.1.1 |
| typo3 | typo3 | >= 10.0.0 < 10.4.14 | 10.4.14 |
| typo3 | typo3 | >= 11.0.0 < 11.1.1 | 11.1.1 |
| typo3 | typo3.cms | — | — |
| typo3 | typo3.cms | — | — |
CVSS provenance
nvdv3.15.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
nvdv2.03.5LOWAV:N/AC:M/Au:S/C:N/I:P/A:N
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OSV
Cross-Site Scripting in Content Preview
osv·2021-03-23
CVE-2021-21340 [MEDIUM] Cross-Site Scripting in Content Preview
Cross-Site Scripting in Content Preview
### Problem
It has been discovered that database fields used as _descriptionColumn_ are vulnerable to cross-site scripting when their content gets previewed in the page module. A valid backend user account is needed to exploit this vulnerability.
### Solution
Update to TYPO3 versions 10.4.14, 11.1.1 that fix the problem described.
### Credits
Thanks to Richie Lee who reported this issue and to TYPO3 framework merger Andreas Fernandez who fixed the issue.
### References
* [TYPO3-CORE-SA-2021-007](https://typo3.org/security/advisory/typo3-core-sa-2021-007)
GHSA
Cross-Site Scripting in Content Preview
ghsa·2021-03-23
CVE-2021-21340 [MEDIUM] CWE-79 Cross-Site Scripting in Content Preview
Cross-Site Scripting in Content Preview
### Problem
It has been discovered that database fields used as _descriptionColumn_ are vulnerable to cross-site scripting when their content gets previewed in the page module. A valid backend user account is needed to exploit this vulnerability.
### Solution
Update to TYPO3 versions 10.4.14, 11.1.1 that fix the problem described.
### Credits
Thanks to Richie Lee who reported this issue and to TYPO3 framework merger Andreas Fernandez who fixed the issue.
### References
* [TYPO3-CORE-SA-2021-007](https://typo3.org/security/advisory/typo3-core-sa-2021-007)
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-fjh3-g8gq-9q92https://packagist.org/packages/typo3/cms-backendhttps://typo3.org/security/advisory/typo3-core-sa-2021-007https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-fjh3-g8gq-9q92https://packagist.org/packages/typo3/cms-backendhttps://typo3.org/security/advisory/typo3-core-sa-2021-007
2021-03-23
Published