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TI-2021-04457 Aliases CVE-2021-21358GHSA-x79j-wgqv-g8h2

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in typo3/cms-form

Priority LOW 26CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-79.

Summary

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.

Why it matters now

EPSS 0.00872 59th percentileScored 2026-11-07
Fix Fixed typo3/cms-form (Packagist): 10.4.14, 11.1.1typo3/cms-core (Packagist): 10.4.14, 11.1.1+1 more product

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
TYPO3TYPO3.CMS10.2.0 – 10.4.13; 11.0.0 – 11.1.0—No fix listedCNA
—typo3/cms-form (Packagist)10.2.0 to before 10.4.1410.4.14Patch availableGHSA-x79j-wgqv-g8h2
—typo3/cms-form (Packagist)11.0.0 to before 11.1.111.1.1Patch availableGHSA-x79j-wgqv-g8h2
—typo3/cms-core (Packagist)10.0.0 to before 10.4.1410.4.14Patch availableGHSA-x79j-wgqv-g8h2
—typo3/cms-core (Packagist)11.0.0 to before 11.1.111.1.1Patch availableGHSA-x79j-wgqv-g8h2
—typo3/cms (Packagist)10.0.0 to before 10.4.1410.4.14Patch availableGHSA-x79j-wgqv-g8h2
—typo3/cms (Packagist)11.0.0 to before 11.1.111.1.1Patch availableGHSA-x79j-wgqv-g8h2
  • TYPO3.CMS VendorTYPO3 Affected 10.2.0 – 10.4.13; 11.0.0 – 11.1.0 Fixed in — No fix listed CNA
  • typo3/cms-form (Packagist) Vendor— Affected 10.2.0 to before 10.4.14 Fixed in 10.4.14 Patch available GHSA-x79j-wgqv-g8h2
  • typo3/cms-form (Packagist) Vendor— Affected 11.0.0 to before 11.1.1 Fixed in 11.1.1 Patch available GHSA-x79j-wgqv-g8h2
  • typo3/cms-core (Packagist) Vendor— Affected 10.0.0 to before 10.4.14 Fixed in 10.4.14 Patch available GHSA-x79j-wgqv-g8h2
  • typo3/cms-core (Packagist) Vendor— Affected 11.0.0 to before 11.1.1 Fixed in 11.1.1 Patch available GHSA-x79j-wgqv-g8h2
  • typo3/cms (Packagist) Vendor— Affected 10.0.0 to before 10.4.14 Fixed in 10.4.14 Patch available GHSA-x79j-wgqv-g8h2
  • typo3/cms (Packagist) Vendor— Affected 11.0.0 to before 11.1.1 Fixed in 11.1.1 Patch available GHSA-x79j-wgqv-g8h2

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:*10.2.0 to before 10.4.14; 11.0.0 to before 11.1.1VulnerableTYPO3
  • cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:* Versions 10.2.0 to before 10.4.14; 11.0.0 to before 11.1.1 Vulnerable ·TYPO3

Remediation

  • Fix · GHSA-x79j-wgqv-g8h2 typo3/cms-form (Packagist) Fixed in 10.4.14 Advisory →
  • Fix · GHSA-x79j-wgqv-g8h2 typo3/cms-form (Packagist) Fixed in 11.1.1 Advisory →
  • Fix · GHSA-x79j-wgqv-g8h2 typo3/cms-core (Packagist) Fixed in 10.4.14 Advisory →
  • Fix · GHSA-x79j-wgqv-g8h2 typo3/cms-core (Packagist) Fixed in 11.1.1 Advisory →
  • Fix · GHSA-x79j-wgqv-g8h2 typo3/cms (Packagist) Fixed in 10.4.14 Advisory →
  • Fix · GHSA-x79j-wgqv-g8h2 typo3/cms (Packagist) Fixed in 11.1.1 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-21358
  2. 2026-10-03 Alias added: GHSA-x79j-wgqv-g8h2

References

Advisory 4

Other 2

  • TI-2023-10314 Persisted Cross-Site Scripting in Frontend Rendering in typo3 CVSS 3.1HIGH 8.8
  • TI-2010-03538 The jumpUrl (aka access tracking) implementation in tslib/class.tslib_fe.php in TYPO3… CVSS 2.0HIGH 7.1
  • TI-2009-00775 The jumpUrl mechanism in class.tslib_fe.php in TYPO3 3.3.x through 3.8.x, 4.0 before… CVSS 2.0MEDIUM 5.0
  • TI-2009-00241 The Indexed Search Engine (indexed_search) system extension in TYPO3 4.0.0 through 4.0.9… CVSS 2.0HIGH 10.0
  • TI-2020-08940 Improperly Controlled Modification of Dynamically-Determined Object Attributes in TYPO3 CMS CVSS 3.1CRITICAL 10.0
  • TI-2011-03994 Improper authentication in TYPO3 CVSS 3.1CRITICAL 9.8
See all 217 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences