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Medium

TYPO3 Cross-Site Scripting in Backend Modal Component

  • Disclosed: 30.05.2024
  • Updated: 11.10.2026 10:22

Failing to properly encode user input, notifications shown in modal windows in the TYPO3 backend are vulnerable to cross-site scripting. A valid backend user account is needed in order to exploit this vulnerability.

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
Composer package typo3/cms-core >= 8.0.0, < 8.7.21, >= 9.0.0, < 9.5.2, >= 7.1.0, < 7.6.32 8.7.21, 9.5.2, 7.6.32

References

CVSS score 6.1/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness (CWE)
CWE-79
Platform
Composer
Package
typo3/cms-core
Disclosed
30.05.2024
Updated
11.10.2026 10:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-g4c9-qfvw-fmr4 - CC BY 4.0

Vulnerability history: typo3/cms-core

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 (128) in the archive
Total entries
128
First → latest
09.2018 09.2026
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • Critical 1
  • High 35
  • Medium 84
  • Low 8

Disclosures per year

Severity:
  1. TYPO3 CMS - Broken Access Control in Backend and Install Tool
    High CVE-2026-19418 >= 14.0.0, < 14.3.6 14.3.6
  2. TYPO3 CMS has Broken Access Control in its Form Framework
    High CVE-2026-11607 < 10.4.57, >= 11.0.0, < 11.5.51, >= 12.0.0, < 12.4.46, >= 13.0.0, < 13.4.31, >= 14.0.0, < 14.3.3 10.4.57, 11.5.51, 12.4.46, 13.4.31, 14.3.3
  3. TYPO3 CMS: Destructive Actions on File Mount Folders
    High CVE-2026-47343 < 10.4.57, >= 11.0.0, < 11.5.51, >= 12.0.0, < 12.4.46, >= 13.0.0, < 13.4.31, >= 14.0.0, < 14.3.3 10.4.57, 11.5.51, 12.4.46, 13.4.31, 14.3.3
  4. TYPO3 CMS has Privilege Escalation & SQL Injection in its Form Framework
    High CVE-2026-49741 >= 14.0.0, < 14.3.3 14.3.3
  5. TYPO3 CMS has Broken Access Control in its Form Framework
    High CVE-2026-47346 < 10.4.57, >= 11.0.0, < 11.5.51, >= 12.0.0, < 12.4.46, >= 13.0.0, < 13.4.31, >= 14.0.0, < 14.3.3 10.4.57, 11.5.51, 12.4.46, 13.4.31, 14.3.3
  6. TYPO3 CMS has Broken Access Control in its Media Module
    High CVE-2026-49742 >= 11.0.0, < 11.5.51, >= 12.0.0, < 12.4.46, >= 13.0.0, < 13.4.31, >= 14.0.0, < 14.3.3 11.5.51, 12.4.46, 13.4.31, 14.3.3
  7. TYPO3 Allows Privilege Escalation to System Maintainer
    High · 7.2 CVE-2025-47940 >= 10.4.0, < 10.4.50, >= 11.0.0, < 11.5.44, >= 12.0.0, < 12.4.31, >= 13.0.0, < 13.4.12 10.4.50, 11.5.44, 12.4.31, 13.4.12
  8. TYPO3 Possible Insecure Deserialization in Extbase Request Handling
    High · 8.1 ghsa-5h5v-m596-r6rf >= 8.0.0, < 8.7.30, >= 9.0.0, < 9.5.12 8.7.30, 9.5.12
  9. TYPO3 Arbitrary Code Execution and Cross-Site Scripting in Backend API
    High · 8.8 ghsa-x428-565f-8xj2 >= 8.0.0, < 8.7.27, >= 9.0.0, < 9.5.8 8.7.27, 9.5.8
  10. TYPO3 Security Misconfiguration in Frontend Session Handling
    High · 8.2 ghsa-82vp-jr39-4j2j >= 8.0.0, < 8.7.27, >= 9.0.0, < 9.5.8 8.7.27, 9.5.8
  11. TYPO3 Arbitrary Code Execution via File List Module
    High · 8.8 ghsa-f9hr-7cfq-mjg2 >= 8.0.0, < 8.7.23, >= 9.0.0, < 9.5.4 8.7.23, 9.5.4
  12. TYPO3 Security Misconfiguration for Backend User Accounts
    High · 7.5 ghsa-rxc9-f2x6-qh4w >= 8.0.0, < 8.7.23, >= 9.0.0, < 9.5.4 8.7.23, 9.5.4
  13. TYPO3 Denial of Service in Frontend Record Registration
    High · 7.5 ghsa-hjx5-v9xg-7h25 >= 8.0.0, < 8.7.21, >= 7.0.0, < 7.6.32 8.7.21, 7.6.32
  14. TYPO3 Security Misconfiguration in Install Tool Cookie
    High · 7.5 ghsa-ppvg-hw62-6ph9 >= 8.0.0, < 8.7.21, >= 9.0.0, < 9.5.2, >= 7.0.0, < 7.6.32 8.7.21, 9.5.2, 7.6.32
  15. TYPO3 Cross-Site Scripting in Backend Modal Component this entry
    Medium · 6.1 ghsa-g4c9-qfvw-fmr4 >= 8.0.0, < 8.7.21, >= 9.0.0, < 9.5.2, >= 7.1.0, < 7.6.32 8.7.21, 9.5.2, 7.6.32
  16. TYPO3 CMS Insecure Deserialization
    High · 7.5 ghsa-96jg-pmc4-cx39 >= 8.5.0, < 8.7.17, >= 9.0.0, < 9.3.1 8.7.17, 9.3.1
  17. TYPO3 CMS Privilege Escalation and SQL Injection
    High · 7.5 ghsa-45wj-jv2h-jwrf >= 8.5.0, < 8.7.17, >= 9.0.0, < 9.3.2 8.7.17, 9.3.2
  18. TYPO3 CMS Insecure Deserialization & Arbitrary Code Execution
    Critical · 9.8 ghsa-cc97-g92w-jm65 >= 8.0.0, < 8.7.17, >= 9.0.0, < 9.3.2, >= 7.0.0, < 7.6.30 8.7.17, 9.3.2, 7.6.30
  19. TYPO3 CMS Authentication Bypass vulnerability
    High · 7.5 ghsa-x4rj-f7m6-42c3 >= 8.0.0, < 8.7.17, >= 9.0.0, < 9.3.2, >= 7.0.0, < 7.6.30 8.7.17, 9.3.2, 7.6.30
  20. TYPO3 Install Tool vulnerable to Code Execution
    High · 7.2 CVE-2024-22188 >= 8.0.0, < 8.7.57, >= 9.0.0, < 9.5.46, >= 10.0.0, < 10.4.43, >= 11.0.0, < 11.5.35, >= 12.0.0, < 12.4.11, >= 13.0.0, < 13.0.1 8.7.57, 9.5.46, 10.4.43, 11.5.35, 12.4.11, 13.0.1
  21. TYPO3 vulnerable to Improper Access Control Persisting File Abstraction Layer Entities via Data Handler
    High · 7.1 CVE-2024-25121 >= 8.0.0, < 8.7.57, >= 9.0.0, < 9.5.46, >= 10.0.0, < 10.4.43, >= 11.0.0, < 11.5.35, >= 12.0.0, < 12.4.11, >= 13.0.0, < 13.0.1 8.7.57, 9.5.46, 10.4.43, 11.5.35, 12.4.11, 13.0.1
  22. TYPO3 is vulnerable to Cross-Site Scripting via frontend rendering
    High · 8.8 CVE-2023-24814 >= 12.0.0, < 12.2.0, >= 11.0.0, < 11.5.23, >= 10.0.0, < 10.4.36, >= 9.0.0, < 9.5.40, >= 8.7.0, < 8.7.51 12.2.0, 11.5.23, 10.4.36, 9.5.40, 8.7.51
  23. TYPO3 CMS vulnerable to Arbitrary Code Execution via Form Framework
    High · 7.5 CVE-2022-23503 >= 8.0.0, < 8.7.49, >= 9.0.0, < 9.5.38, >= 10.0.0, < 10.4.33, >= 11.0.0, < 11.5.20, >= 12.0.0, < 12.1.1 8.7.49, 9.5.38, 10.4.33, 11.5.20, 12.1.1
  24. TYPO3 Vulnerable to Insecure Deserialization
    High · 8.8 CVE-2019-12747 >= 8.0.0, < 8.7.27, >= 9.0.0, < 9.5.8 8.7.27, 9.5.8
  25. TYPO3 Image Processing susceptible to Code Execution
    High · 7.5 CVE-2019-11832 >= 8.0.0, < 8.7.25, >= 9.0.0, < 9.5.6 8.7.25, 9.5.6
  26. TYPO3 Insecure Deserialization in Query Generator & Query View
    High · 8.8 CVE-2019-19849 >= 10.0.0, < 10.2.1, >= 8.0.0, < 8.7.30, >= 9.0.0, < 9.5.12 10.2.1, 8.7.30, 9.5.12
  27. TYPO3 SQL injection vulnerability in the Extbase Framework
    High · 7.4 CVE-2013-1842 >= 4.5.0, < 4.5.24, >= 4.6.0, < 4.6.17, >= 4.7.0, < 4.7.9, >= 6.0.0, < 6.0.3 4.5.24, 4.6.17, 4.7.9, 6.0.3
  28. Cross-Site-Request-Forgery in Backend
    High · 8.8 CVE-2021-41113 >= 11.2.0, < 11.5.0 11.5.0
  29. Broken Access Control in Form Framework
    High · 8.3 CVE-2021-21357 >= 10.0.0, < 10.4.14, >= 11.0.0, < 11.1.1, >= 9.0.0, < 9.5.25 10.4.14, 11.1.1, 9.5.25
  30. Unrestricted File Upload in Form Framework
    High · 8.6 CVE-2021-21355 >= 10.0.0, < 10.4.14, >= 11.0.0, < 11.1.1, >= 9.0.0, < 9.5.25 10.4.14, 11.1.1, 9.5.25
  31. Cleartext storage of session identifier
    High · 8.1 CVE-2020-26228 >= 9.0.0, < 9.5.23, >= 10.0.0, < 10.4.10, >= 8.7.0, < 8.7.38 9.5.23, 10.4.10, 8.7.38
  32. Exposure of Sensitive Information to an Unauthorized Actor in TYPO3 CMS
    High · 8.1 CVE-2020-15099 >= 9.0.0, < 9.5.20, >= 10.0.0, < 10.4.6 9.5.20, 10.4.6
  33. Missing Required Cryptographic Step Leading to Sensitive Information Disclosure in TYPO3 CMS
    High · 8.8 CVE-2020-15098 >= 9.0.0, < 9.5.20, >= 10.0.0, < 10.4.6 9.5.20, 10.4.6
  34. Backend Same-Site Request Forgery in TYPO3 CMS
    High · 8.0 CVE-2020-11069 >= 9.0.0, < 9.5.17, >= 10.0.0, < 10.4.2 9.5.17, 10.4.2
  35. Insecure Deserialization in Backend User Settings in TYPO3 CMS
    High · 8.8 CVE-2020-11067 >= 9.0.0, < 9.5.17, >= 10.0.0, < 10.4.2 9.5.17, 10.4.2
  36. Class destructors causing side-effects when being unserialized in TYPO3 CMS
    High · 8.7 CVE-2020-11066 >= 9.0.0, < 9.5.17, >= 10.0.0, < 10.4.2 9.5.17, 10.4.2
  37. Deserialization of untrusted data in Symfony
    High · 7.1 CVE-2019-10912 >= 9.0.0, < 9.5.8 9.5.8

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