Cross-Site Scripting in Fluid view helpers
Priority LOW 28CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- 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 9.5.23 and 10.4.10 the system extension Fluid (typo3/cms-fluid) of the TYPO3 core is vulnerable to cross-site scripting passing user-controlled data as argument to Fluid view helpers. Update to TYPO3 versions 9.5.23 or 10.4.10 that fix the problem described.
Why it matters now
EPSS 0.00724 54th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix Fixed TYPO3.CMS (TYPO3): 9.5.23, 10.4.10typo3/cms-core (Packagist): 9.5.23, 10.4.10, 8.7.38+1 more product
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| TYPO3 | TYPO3.CMS | 9.0.0 to before 9.5.23; 10.0.0 to before 10.4.10 | 9.5.23, 10.4.10 | Patch available | CNA |
| — | typo3/cms-core (Packagist) | 9.0.0 to before 9.5.23 | 9.5.23 | Patch available | GHSA-vqqx-jw6p-q3rf |
| — | typo3/cms-core (Packagist) | 10.0.0 to before 10.4.10 | 10.4.10 | Patch available | GHSA-vqqx-jw6p-q3rf |
| — | typo3/cms-core (Packagist) | 8.7.0 to before 8.7.38 | 8.7.38 | Patch available | GHSA-vqqx-jw6p-q3rf |
| — | typo3/cms (Packagist) | 10.0.0 to before 10.4.10 | 10.4.10 | Patch available | GHSA-vqqx-jw6p-q3rf |
| — | typo3/cms (Packagist) | 9.0.0 to before 9.5.23 | 9.5.23 | Patch available | GHSA-vqqx-jw6p-q3rf |
| — | typo3/cms (Packagist) | 8.7.0 to before 8.7.38 | 8.7.38 | Patch available | GHSA-vqqx-jw6p-q3rf |
- TYPO3.CMS VendorTYPO3 Affected 9.0.0 to before 9.5.23; 10.0.0 to before 10.4.10 Fixed in 9.5.23, 10.4.10 Patch available CNA
- typo3/cms-core (Packagist) Vendor— Affected 9.0.0 to before 9.5.23 Fixed in 9.5.23 Patch available GHSA-vqqx-jw6p-q3rf
- typo3/cms-core (Packagist) Vendor— Affected 10.0.0 to before 10.4.10 Fixed in 10.4.10 Patch available GHSA-vqqx-jw6p-q3rf
- typo3/cms-core (Packagist) Vendor— Affected 8.7.0 to before 8.7.38 Fixed in 8.7.38 Patch available GHSA-vqqx-jw6p-q3rf
- typo3/cms (Packagist) Vendor— Affected 10.0.0 to before 10.4.10 Fixed in 10.4.10 Patch available GHSA-vqqx-jw6p-q3rf
- typo3/cms (Packagist) Vendor— Affected 9.0.0 to before 9.5.23 Fixed in 9.5.23 Patch available GHSA-vqqx-jw6p-q3rf
- typo3/cms (Packagist) Vendor— Affected 8.7.0 to before 8.7.38 Fixed in 8.7.38 Patch available GHSA-vqqx-jw6p-q3rf
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:* | 6.2.0 to before 6.2.54; 7.6.0 to before 7.6.48; 8.7.0 to before 8.7.38; 9.0.0 to before 9.5.23; 10.0.0 to before 10.4.10 | Vulnerable | TYPO3 |
- cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:* Versions 6.2.0 to before 6.2.54; 7.6.0 to before 7.6.48; 8.7.0 to before 8.7.38; 9.0.0 to before 9.5.23; 10.0.0 to before 10.4.10 Vulnerable ·TYPO3
Remediation
- Fix · CNA TYPO3.CMS (TYPO3) Fixed in 9.5.23, 10.4.10
- Fix · GHSA-vqqx-jw6p-q3rf typo3/cms-core (Packagist) Fixed in 9.5.23 Advisory →
- Fix · GHSA-vqqx-jw6p-q3rf typo3/cms-core (Packagist) Fixed in 10.4.10 Advisory →
- Fix · GHSA-vqqx-jw6p-q3rf typo3/cms-core (Packagist) Fixed in 8.7.38 Advisory →
- Fix · GHSA-vqqx-jw6p-q3rf typo3/cms (Packagist) Fixed in 10.4.10 Advisory →
- Fix · GHSA-vqqx-jw6p-q3rf typo3/cms (Packagist) Fixed in 9.5.23 Advisory →
- Fix · GHSA-vqqx-jw6p-q3rf typo3/cms (Packagist) Fixed in 8.7.38 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2020-26227
- 2026-10-03 Alias added: GHSA-vqqx-jw6p-q3rf
References
Exploit 2
More Typo3 vulnerabilities
- 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
Sources
- CVE-2020-26227 · CVE Program
- CVE-2020-26227 · NVD
- FIRST EPSS
- GHSA-vqqx-jw6p-q3rf · GitHub Advisory Database · CC BY 4.0
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