Medium severity5.4NVD Advisory· Published Mar 23, 2021· Updated Jun 17, 2026
CVE-2021-21358
CVE-2021-21358
Description
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 the Form Designer backend module of the Form Framework is vulnerable to cross-site scripting. A valid backend user account with access to the form module is needed to exploit this vulnerability. This is fixed in versions 10.4.14, 11.1.1.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
typo3/cms-formPackagist | >= 10.2.0, < 10.4.14 | 10.4.14 |
typo3/cms-formPackagist | >= 11.0.0, < 11.1.1 | 11.1.1 |
typo3/cms-corePackagist | >= 10.0.0, < 10.4.14 | 10.4.14 |
typo3/cms-corePackagist | >= 11.0.0, < 11.1.1 | 11.1.1 |
typo3/cmsPackagist | >= 10.0.0, < 10.4.14 | 10.4.14 |
typo3/cmsPackagist | >= 11.0.0, < 11.1.1 | 11.1.1 |
Affected products
5- osv-coords4 versions
>= 10.2.0, < 10.4.14+ 3 more
- (no CPE)range: >= 10.2.0, < 10.4.14
- (no CPE)range: >= 10.0.0, < 10.4.14
- (no CPE)range: >= 10.0.0, < 10.4.14
- (no CPE)range: >= 10.2.0, < 10.4.14
Patches
Vulnerability mechanics
References
7- github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-x79j-wgqv-g8h2nvdThird Party AdvisoryWEB
- github.com/advisories/GHSA-x79j-wgqv-g8h2ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-21358ghsaADVISORY
- packagist.org/packages/typo3/cms-formnvdRelease NotesThird Party AdvisoryWEB
- typo3.org/security/advisory/typo3-core-sa-2021-004nvdVendor AdvisoryWEB
- github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2021-21358.yamlghsaWEB
- github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2021-21358.yamlghsaWEB
News mentions
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