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Medium

TYPO3 Cross-site Scripting vulnerability in the extension manager and backend forms

  • Disclosed: 17.05.2022
  • Updated: 11.10.2026 10:22

Multiple cross-site scripting (XSS) vulnerabilities in TYPO3 CMS 4.1.x before 4.1.14, 4.2.x before 4.2.13, 4.3.x before 4.3.4, and 4.4.x before 4.4.1 allow remote authenticated backend users to inject arbitrary web script or HTML via unspecified parameters to the extension manager, or unspecified parameters to unknown backend forms.

Affected software

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PlatformPackageVulnerable versionsFixed in
Composer package typo3/cms-backend >= 4.1.0, < 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

References

CVSS score 5.4/10
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness (CWE)
CWE-79
Platform
Composer
Package
typo3/cms-backend
Disclosed
17.05.2022
Updated
11.10.2026 10:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-jr79-65xr-q7cx - 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 Cross-site Scripting vulnerability in the extension manager and backend forms this entry
    Medium · 5.4 CVE-2010-3659 >= 4.1.0, < 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
  5. 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
  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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