GHSA-8h4m-r4wm-xj7r
TYPO3 Arbitrary Code Execution via File List Module
GHSA-8h4m-r4wm-xj7r is a high vulnerability (CVSS 8.8) in typo3/cms, published June 7, 2024. No source lists public exploit code. Fixed in typo3/cms 8.7.23.
- Severity
- 8.8 HighCVSS 3.1, GitHub Advisories
- Exploit chance
- UnscoredNo EPSS score yet
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
8.7.23typo3/cms +3 more
Description
Due to missing file extensions in $GLOBALS['TYPO3_CONF_VARS']['BE'][‘fileDenyPattern’], backend users are allowed to upload *.phar, *.shtml, *.pl or *.cgi files which can be executed in certain web server setups. A valid backend user account is needed in order to exploit this vulnerability.
Derivatives of Debian GNU Linux are handling *.phar files as PHP applications since PHP 7.1 (for unofficial packages) and PHP 7.2 (for official packages).
The file extension *.shtml is bound to server side includes which are not enabled per default in most common Linux based distributions. File extension *.pl and *.cgi require additional handlers to be configured which is also not the case in most common distributions (except for /cgi-bin/ location).
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Affected packages
| Package | Affected | Fixed |
|---|---|---|
typo3/cmsPackagist | 8.0.0 up to 8.7.23 | 8.7.23 |
typo3/cmsPackagist | 9.0.0 up to 9.5.4 | 9.5.4 |
typo3/cmsPackagist | 8.0.0 up to 8.7.23, plus listed versions 8.0.18.1.08.1.18.1.28.2.0 Show 32 moreShow less8.2.18.3.08.3.18.4.08.4.18.5.08.5.18.6.08.6.18.7.08.7.18.7.2v8.7.10v8.7.11v8.7.12v8.7.13v8.7.14v8.7.15v8.7.16v8.7.17v8.7.18v8.7.19v8.7.20v8.7.21v8.7.22v8.7.3v8.7.4v8.7.5v8.7.6v8.7.7v8.7.8v8.7.9 | 8.7.23 |
typo3/cmsPackagist | 9.0.0 up to 9.5.4, plus listed versions v9.0.0v9.1.0v9.2.0v9.2.1v9.3.0 Show 8 moreShow lessv9.3.1v9.3.2v9.3.3v9.4.0v9.5.0v9.5.1v9.5.2v9.5.3 | 9.5.4 |
What each source reports
GitHub Advisories Score used
TYPO3 Arbitrary Code Execution via File List Module
Due to missing file extensions in $GLOBALS['TYPO3_CONF_VARS']['BE'][‘fileDenyPattern’], backend users are allowed to upload *.phar, *.shtml, *.pl or *.cgi files which can be executed in certain web server setups. A valid backend user account is needed in order to exploit this vulnerability.
Derivatives of Debian GNU Linux are handling *.phar files as PHP applications since PHP 7.1 (for unofficial packages) and PHP 7.2 (for official packages).
The file extension *.shtml is bound to server side includes which are not enabled per default in most common Linux based distributions. File extension *.pl and *.cgi require additional handlers to be configured which is also not the case in most common distributions (except for /cgi-bin/ location).
- Record
GHSA-8h4m-r4wm-xj7r- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-434
- Updated
- 2026-11-02
OSV
TYPO3 Arbitrary Code Execution via File List Module
Due to missing file extensions in $GLOBALS['TYPO3_CONF_VARS']['BE'][‘fileDenyPattern’], backend users are allowed to upload *.phar, *.shtml, *.pl or *.cgi files which can be executed in certain web server setups. A valid backend user account is needed in order to exploit this vulnerability.
Derivatives of Debian GNU Linux are handling *.phar files as PHP applications since PHP 7.1 (for unofficial packages) and PHP 7.2 (for official packages).
The file extension *.shtml is bound to server side includes which are not enabled per default in most common Linux based distributions. File extension *.pl and *.cgi require additional handlers to be configured which is also not the case in most common distributions (except for /cgi-bin/ location).
- Record
GHSA-8h4m-r4wm-xj7r- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-434
- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | GitHub Advisories, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
References
github.com/TYPO3/typo3/commit/095ae4ab6869d0f7dc7befedb851cdd7ad0c7ebf
typo3.org/security/advisory/typo3-core-sa-2019-008