Sign in
Deutsch English Español Polski
High

Exposure of Sensitive Information to an Unauthorized Actor in TYPO3 CMS

  • Disclosed: 29.07.2020
  • Updated: 11.10.2026 10:22

Meta

  • CVSS: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C (7.5)
  • CWE-20, CWE-200

Problem

In case an attacker manages to generate a valid cryptographic message authentication code (HMAC-SHA1) - either by using a different existing vulnerability or in case the internal encryptionKey was exposed - it is possible to retrieve arbitrary files of a TYPO3 installation. This includes the possibility to fetch typo3conf/LocalConfiguration.php which again contains the encryptionKey as well as credentials of the database management system being used.

In case a database server is directly accessible either via internet or in a shared hosting network, this allows to completely retrieve, manipulate or delete database contents. This includes creating an administration user account - which can be used to trigger remote code execution by injecting custom extensions.

Solution

Update to TYPO3 versions 9.5.20 or 10.4.6 that fix the problem described.

Credits

Thanks to TYPO3 security team member Oliver Hader who reported and fixed the issue.

References

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
Composer package typo3/cms >= 10.0.0, < 10.4.6, >= 9.0.0, < 9.5.20 10.4.6, 9.5.20
Composer package typo3/cms-core >= 9.0.0, < 9.5.20, >= 10.0.0, < 10.4.6 9.5.20, 10.4.6

References

CVSS score 8.1/10
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-20, CWE-200
Platform
Composer
Package
typo3/cms, typo3/cms-core
Disclosed
29.07.2020
Updated
11.10.2026 10:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-3x94-fv5h-5q2c - CC BY 4.0

Vulnerability history: typo3/cms

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 (188) in the archive
Total entries
188
First → latest
09.2018 06.2024
Without a fix
3
Exploited in attacks
0

Severity breakdown

  • Critical 6
  • High 41
  • Medium 128
  • Low 13

Disclosures per year

Severity:
  1. Exposure of Sensitive Information to an Unauthorized Actor in TYPO3 CMS this entry
    High · 8.1 CVE-2020-15099 >= 10.0.0, < 10.4.6, >= 9.0.0, < 9.5.20 10.4.6, 9.5.20
  2. TYPO3 Security Misconfiguration in Install Tool Cookie
    High · 8.1 ghsa-f777-f784-36gm >= 7.0.0, < 7.6.32, >= 8.0.0, < 8.7.21, >= 9.0.0, < 9.5.2 7.6.32, 8.7.21, 9.5.2
  3. TYPO3 Arbitrary Code Execution via File List Module
    High · 8.8 ghsa-8h4m-r4wm-xj7r >= 8.0.0, < 8.7.23, >= 9.0.0, < 9.5.4 8.7.23, 9.5.4
  4. TYPO3 Denial of Service in Frontend Record Registration
    High · 7.5 ghsa-g585-crjf-vhwq >= 7.0.0, < 7.6.32, >= 8.0.0, < 8.7.21 7.6.32, 8.7.21
  5. TYPO3 Security Misconfiguration for Backend User Accounts
    High · 7.3 ghsa-c5mj-39cf-3pp5 >= 8.0.0, < 8.7.23, >= 9.0.0, < 9.5.4 8.7.23, 9.5.4
  6. TYPO3 CMS Possible Insecure Deserialization in Extbase Request Handling
    High · 8.1 ghsa-hh95-5xm5-v8v7 >= 8.0.0, < 8.7.30, >= 9.0.0, < 9.5.12 8.7.30, 9.5.12
  7. Insecure Deserialization & Arbitrary Code Execution in TYPO3 CMS
    High ghsa-ppgf-8745-8pgx >= 7.0.0, < 7.6.30, >= 8.0.0, < 8.7.17, >= 9.0.0, < 9.3.2 7.6.30, 8.7.17, 9.3.2
  8. Privilege Escalation & SQL Injection in TYPO3 CMS
    High · 8.8 ghsa-7qwg-fcpw-xg5g >= 8.5.0, < 8.7.17, >= 9.0.0, < 9.3.2 8.7.17, 9.3.2
  9. TYPO3 Remote Code Execution in third party library swiftmailer
    High ghsa-g4pf-3jvq-2gcw >= 6.2.0, < 6.2.30, >= 7.6.0, < 7.6.15, >= 8.0.0, < 8.5.1 6.2.30, 7.6.15, 8.5.1
  10. Arbitrary Code Execution in TYPO3 CMS
    Critical · 9.9 ghsa-67wg-6j7r-mqh8 >= 7.6.0, < 7.6.22, >= 8.0.0, < 8.7.5 7.6.22, 8.7.5
  11. Insecure Deserialization in TYPO3 CMS
    High ghsa-8h28-f46f-m87h >= 8.5.0, < 8.7.17, >= 9.0.0, < 9.3.2 8.7.17, 9.3.2
  12. Missing Access Check in TYPO3 CMS
    Critical · 9.0 ghsa-gwfx-p7mr-f92v >= 6.2.0, < 6.2.25, >= 7.6.0, < 7.6.8, >= 8.0.0, < 8.1.1 6.2.25, 7.6.8, 8.1.1
  13. XML External Entity (XXE) Processing in TYPO3 Core
    High ghsa-qffc-gwpp-m2xr >= 6.2.0, < 6.2.19, >= 7.6.0, < 7.6.4 6.2.19, 7.6.4
  14. TYPO3 SQL Injection in dbal
    High ghsa-9895-53fc-98v2 >= 6.2.0, < 6.2.18 6.2.18
  15. TYPO3 frontend login vulnerable to Session Fixation
    High · 7.1 ghsa-r9vc-jfmh-6j48 >= 6.2.0, < 6.2.14, >= 7.0.0, < 7.3.1 6.2.14, 7.3.1
  16. TYPO3 may allow editors to change, create, or delete metadata of files not within their file mounts
    High · 8.8 ghsa-4r76-xr68-w7m7 >= 6.2.0, < 6.2.14, >= 7.0.0, < 7.3.1 6.2.14, 7.3.1
  17. TYPO3 possible cache poisoning on the homepage when anchors are used
    High ghsa-p84g-j2gh-83g3 >= 6.2.0, < 6.2.9, >= 7.0.0, < 7.0.2 6.2.9, 7.0.2
  18. TYPO3 Arbitrary Shell Execution in Swiftmailer library
    High · 8.1 ghsa-45xg-4w5x-j429 >= 6.2.0, < 6.2.6, >= 6.1.0, < 6.1.12, >= 4.7.0, < 4.7.20, >= 4.5.0, < 4.5.37 6.2.6, 6.1.12, 4.7.20, 4.5.37
  19. TYPO3 is vulnerable to Cross-Site Scripting via frontend rendering
    High · 8.8 CVE-2023-24814 >= 10.0.0, < 10.4.35, >= 11.0.0, < 11.5.23, >= 12.0.0, < 12.2.0 10.4.35, 11.5.23, 12.2.0
  20. TYPO3 vulnerable to Insufficient Session Expiration
    Critical · 9.8 CVE-2022-47406 < 2.0.5, >= 3.0.0, < 3.0.3 2.0.5, 3.0.3
  21. TYPO3 CMS vulnerable to Arbitrary Code Execution via Form Framework
    High · 7.5 CVE-2022-23503 >= 10.0.0, < 10.4.33, >= 11.0.0, < 11.5.20, >= 12.0.0, < 12.1.1 10.4.33, 11.5.20, 12.1.1
Show more (20) Showing 21 of 47

Know which vulnerabilities affect your application

With the DockRay integration and software inventory enabled, DockRay checks reported component versions against known vulnerabilities and notifies you about confirmed matches. Coverage depends on the supported technology and available advisory data.

Connect your application
DockRay newsletter

Application security in your inbox

Important vulnerabilities, actionable guidance and practical advice for your applications. Choose your technologies and follow what matters to your project.

  • A daily digest of new vulnerabilities, critical ones included.
  • Notifications about important updates.
  • Practical advice on application security and monitoring.

Leave empty to receive updates for every technology.

Privacy policy

Free to subscribe. Unsubscribe with one click in any email.