CVE-2021-21370
unknown
CVSS v3
—
CVSS v2
—
VIR risk
—
Description
Cross-Site Scripting in Content Preview (CType menu)
Predictions
Exploit likelihood
30%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No vendor mitigations ingested yet for this CVE. The mitigation-content worker queues fetches as references arrive — check back in a few minutes, or see the references list below.
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Packagist | typo3/cms-backend | >=7.0.0,<7.6.51 | 7.6.51 |
| Packagist | typo3/cms-backend | >=8.0.0,<8.7.40 | 8.7.40 |
| Packagist | typo3/cms-backend | >=9.0.0,<9.5.25 | 9.5.25 |
| Packagist | typo3/cms-backend | >=10.0.0,<10.4.14 | 10.4.14 |
| Packagist | typo3/cms-backend | >=11.0.0,<11.1.1 | 11.1.1 |
| Packagist | typo3/cms-core | >=10.0.0,<10.4.14 | 10.4.14 |
| Packagist | typo3/cms-core | >=11.0.0,<11.1.1 | 11.1.1 |
| Packagist | typo3/cms-core | >=9.0.0,<9.5.25 | 9.5.25 |
| Packagist | typo3/cms | >=10.0.0,<10.4.14 | 10.4.14 |
| Packagist | typo3/cms | >=11.0.0,<11.1.1 | 11.1.1 |
| Packagist | typo3/cms | >=9.0.0,<9.5.25 | 9.5.25 |
References
- https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-x7hc-x7fm-f7qh
- https://nvd.nist.gov/vuln/detail/CVE-2021-21370
- https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2021-21370.yaml
- https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2021-21370.yaml
- https://packagist.org/packages/typo3/cms-backend
- https://typo3.org/security/advisory/typo3-core-sa-2021-008
Verify integrity in audit chain (admin only). AS-IS.