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Low

TYPO3 Backend vulnerable to Cross-site Scripting

  • Disclosed: 02.05.2022
  • Updated: 11.10.2026 10:22

Multiple cross-site scripting (XSS) vulnerabilities in the Backend subcomponent in TYPO3 4.0.13 and earlier, 4.1.x before 4.1.13, 4.2.x before 4.2.10, and 4.3.x before 4.3beta2 allow remote authenticated users to inject arbitrary web script or HTML via unspecified vectors.

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
Composer package typo3/cms-backend <= 4.0.13, >= 4.1.0, < 4.1.13, >= 4.2.0, < 4.2.10, >= 4.3alpha1, < 4.3beta2 4.1.13, 4.2.10, 4.3beta2

References

CVSS score -
Weakness (CWE)
CWE-79
Platform
Composer
Package
typo3/cms-backend
Disclosed
02.05.2022
Updated
11.10.2026 10:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-g857-p997-wx7w - CC BY 4.0

Vulnerability history: typo3/cms-backend

All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (25) in the archive
Total entries
25
First → latest
03.2021 09.2026
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • High 6
  • Medium 16
  • Low 3

Disclosures per year

Severity:
  1. TYPO3 CMS - Broken Access Control in Backend and Install Tool
    High CVE-2026-19418 >= 13.0.0, < 13.4.34 13.4.34
  2. TYPO3 CMS Stores Cleartext Password in User Settings Module
    High · 7.5 CVE-2026-6553 >= 14.2.0, < 14.3.0 14.3.0
  3. The TYPO3 CMS Backend has Broken Authentication in Backend MFA
    High · 7.2 CVE-2025-47941 >= 12.0.0, < 12.4.31, >= 13.0.0, < 13.4.12 12.4.31, 13.4.12
  4. TYPO3 Backend Command Injection via Shell Metacharacters in Uploaded File Name
    High CVE-2009-3631 <= 4.0.13, >= 4.1.0, < 4.1.13, >= 4.2.0, < 4.2.10, >= 4.3alpha1, < 4.3beta2 4.1.13, 4.2.10, 4.3beta2
  5. TYPO3 Backend vulnerable to Cross-site Scripting this entry
    Low CVE-2009-3629 <= 4.0.13, >= 4.1.0, < 4.1.13, >= 4.2.0, < 4.2.10, >= 4.3alpha1, < 4.3beta2 4.1.13, 4.2.10, 4.3beta2
  6. TYPO3 SQL injection vulnerability on the backend
    High · 8.8 CVE-2010-3662 < 4.1.14, >= 4.2.0, < 4.2.13, >= 4.3.0, < 4.3.4, >= 4.4.0, < 4.4.1 4.1.14, 4.2.13, 4.3.4, 4.4.1
  7. TYPO3 Arbitrary Code Execution vulnerability on the backend
    High · 8.8 CVE-2010-3663 < 4.1.14, >= 4.2, < 4.2.13, >= 4.3, < 4.3.4, >= 4.4, < 4.4.1 4.1.14, 4.2.13, 4.3.4, 4.4.1

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