CVE-2021-21370
published 2021-03-23CVE-2021-21370: TYPO3 is an open source PHP based web content management system. In TYPO3 before versions 7.6.51, 8.7.40, 9.5.25, 10.4.14, 11.1.1 it has been discovered that…
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 7.6.51, 8.7.40, 9.5.25, 10.4.14, 11.1.1 it has been discovered that content elements of type _menu_ are vulnerable to cross-site scripting when their referenced items get previewed in the page module. A valid backend user account is needed to exploit this vulnerability. This is fixed in versions 7.6.51, 8.7.40, 9.5.25, 10.4.14, 11.1.1.
Affected
21 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 | >= 9.0.0 < 9.5.25 | 9.5.25 |
| 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-backend | >= 7.0.0 < 7.6.51 | 7.6.51 |
| typo3 | cms-backend | >= 8.0.0 < 8.7.40 | 8.7.40 |
| typo3 | cms-backend | >= 9.0.0 < 9.5.25 | 9.5.25 |
| 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 | cms-core | >= 9.0.0 < 9.5.25 | 9.5.25 |
| typo3 | typo3 | >= 10.0.0 < 10.4.14 | 10.4.14 |
| typo3 | typo3 | >= 11.0.0 < 11.1.1 | 11.1.1 |
| typo3 | typo3 | >= 7.0.0 < 7.6.51 | 7.6.51 |
| typo3 | typo3 | >= 8.0.0 < 8.7.40 | 8.7.40 |
| typo3 | typo3 | >= 9.0.0 < 9.5.25 | 9.5.25 |
| typo3 | typo3.cms | — | — |
| typo3 | typo3.cms | — | — |
| typo3 | typo3.cms | — | — |
| 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 (CType menu)
osv·2021-03-23
CVE-2021-21370 [MEDIUM] Cross-Site Scripting in Content Preview (CType menu)
Cross-Site Scripting in Content Preview (CType menu)
### Problem
It has been discovered that content elements of type _menu_ are vulnerable to cross-site scripting when their referenced items get previewed in the page module. A valid backend user account is needed to exploit this vulnerability.
### Solution
Update to TYPO3 versions 7.6.51, 8.7.40, 9.5.25, 10.4.14, 11.1.1 that fix the problem described.
### Credits
Thanks to TYPO3 contributor Oliver Bartsch who reported and fixed the issue.
### References
* [TYPO3-CORE-SA-2021-008](https://typo3.org/security/advisory/typo3-core-sa-2021-008)
GHSA
Cross-Site Scripting in Content Preview (CType menu)
ghsa·2021-03-23
CVE-2021-21370 [MEDIUM] CWE-79 Cross-Site Scripting in Content Preview (CType menu)
Cross-Site Scripting in Content Preview (CType menu)
### Problem
It has been discovered that content elements of type _menu_ are vulnerable to cross-site scripting when their referenced items get previewed in the page module. A valid backend user account is needed to exploit this vulnerability.
### Solution
Update to TYPO3 versions 7.6.51, 8.7.40, 9.5.25, 10.4.14, 11.1.1 that fix the problem described.
### Credits
Thanks to TYPO3 contributor Oliver Bartsch who reported and fixed the issue.
### References
* [TYPO3-CORE-SA-2021-008](https://typo3.org/security/advisory/typo3-core-sa-2021-008)
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-x7hc-x7fm-f7qhhttps://packagist.org/packages/typo3/cms-backendhttps://typo3.org/security/advisory/typo3-core-sa-2021-008https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-x7hc-x7fm-f7qhhttps://packagist.org/packages/typo3/cms-backendhttps://typo3.org/security/advisory/typo3-core-sa-2021-008
2021-03-23
Published