Cross-Site Scripting in Query Generator & Query View
Description
TYPO3 is an open source PHP based web content management system. Versions 9.0.0 through 9.5.28, 10.0.0 through 10.4.17, and 11.0.0 through 11.3.0 have a cross-site scripting vulnerability. When error messages are not properly encoded, the components _QueryGenerator_ and _QueryView_ are vulnerable to both reflected and persistent cross-site scripting. A valid backend user account having administrator privileges is needed to exploit this vulnerability. TYPO3 versions 9.5.29, 10.4.18, 11.3.1 contain a patch for this issue.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
TYPO3 CMS versions 9.0.0-11.3.0 are vulnerable to reflected and persistent XSS in QueryGenerator and QueryView due to improper encoding of error messages, requiring admin backend access.
Vulnerability
TYPO3 CMS versions 9.0.0 through 9.5.28, 10.0.0 through 10.4.17, and 11.0.0 through 11.3.0 contain a cross-site scripting (XSS) vulnerability in the QueryGenerator and QueryView components because error messages are not properly encoded [1].
Exploitation
An attacker must have a valid backend user account with administrator privileges to exploit this vulnerability. The attack can be reflected or persistent by crafting malicious input that triggers improper encoding in error messages [1].
Impact
Successful exploitation allows the attacker to execute arbitrary JavaScript in the context of the affected backend user's browser, potentially leading to session hijacking, defacement, or other malicious actions [1].
Mitigation
TYPO3 released patches in versions 9.5.29, 10.4.18, and 11.3.1. Users should upgrade to these versions. No workaround is mentioned in the available references [1].
AI Insight generated on May 21, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
typo3/cms-corePackagist | >= 8.0.0, < 8.7.41 | 8.7.41 |
typo3/cms-corePackagist | >= 9.0.0, < 9.5.28 | 9.5.28 |
typo3/cms-corePackagist | >= 10.0.0, < 10.4.18 | 10.4.18 |
typo3/cms-corePackagist | >= 11.0.0, < 11.3.1 | 11.3.1 |
typo3/cmsPackagist | >= 10.0.0, < 10.4.18 | 10.4.18 |
typo3/cmsPackagist | >= 11.0.0, < 11.3.1 | 11.3.1 |
typo3/cmsPackagist | >= 9.0.0, < 9.5.28 | 9.5.28 |
Affected products
4- osv-coords3 versions
>= 8.0.0, < 8.7.40+ 2 more
- (no CPE)range: >= 8.0.0, < 8.7.40
- (no CPE)range: >= 10.0.0, < 10.4.18
- (no CPE)range: >= 8.0.0, < 8.7.41
- TYPO3/TYPO3.CMSv5Range: >= 9.0.0, < 9.5.29
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
7- github.com/advisories/GHSA-6mh3-j5r5-2379ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-32668ghsaADVISORY
- github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2021-32668.yamlghsaWEB
- github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2021-32668.yamlghsaWEB
- github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-6mh3-j5r5-2379ghsax_refsource_CONFIRMWEB
- github.com/TYPO3/typo3/security/advisories/GHSA-6mh3-j5r5-2379ghsaWEB
- typo3.org/security/advisory/typo3-core-sa-2021-010ghsax_refsource_MISCWEB
News mentions
0No linked articles in our index yet.