CVE-2021-21357

Katalog CVE

CVSS 8.3 · High EPSS 1,6%

Kerentanan Improper Input Validation pada typo3. Skor CVSS 3.1 8.3 (High) menurut NVD.

Deskripsi (NVD)

TYPO3 is an open source PHP based web content management system. In TYPO3 before versions 8.7.40, 9.5.25, 10.4.14, 11.1.1 due to improper input validation, attackers can by-pass restrictions of predefined options and submit arbitrary data in the Form Designer backend module of the Form Framework. In the default configuration of the Form Framework this allows attackers to explicitly allow arbitrary mime-types for file uploads - however, default _fileDenyPattern_ successfully blocked files like _.htaccess_ or _malicious.php_. Besides that, attackers can persist those files in any writable directory of the corresponding TYPO3 installation. A valid backend user account with access to the form module is needed to exploit this vulnerability. This is fixed in versions 8.7.40, 9.5.25, 10.4.14, 11.1.1.

Rincian

Terbit di NVD

23 Maret 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

8.3 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-20: Improper Input Validation
CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-434: Unrestricted Upload of File with Dangerous Type

EPSS (30 hari)

1,6% peluang dieksploitasi; lebih tinggi dari 75,2% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://typo3.org/security/advisory/typo3-core-sa-2021-003 advisory vendor
• https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-3vg7-jw9m-pc3f advisory pihak ketiga
• https://packagist.org/packages/typo3/cms-form release notes · advisory pihak ketiga