CVE-2021-21365: typo3 — Katalog CVE

csirt@kutim:~/threat-intel/cve/CVE-2021-21365

CVSS 5.4 · Medium EPSS 0,94%

Kerentanan Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') pada typo3. Skor CVSS 3.1 5.4 (Medium) menurut NVD.

Deskripsi (NVD)

Bootstrap Package is a theme for TYPO3. It has been discovered that rendering content in the website frontend is vulnerable to cross-site scripting. A valid backend user account is needed to exploit this vulnerability. Users of the extension, who have overwritten the affected templates with custom code must manually apply the security fix. Update to version 7.1.2, 8.0.8, 9.1.4, 10.0.10 or 11.0.3 of the Bootstrap Package that fix the problem described. Updated version are available from the TYPO3 extension manager, Packagist and at https://extensions.typo3.org/extension/download/bootstrap_package/.

Rincian

Terbit di NVD: 27 April 2021
Terakhir diubah: 17 Juni 2026
Status NVD: Modified
CVSS 3.1: 5.4 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
EPSS (30 hari): 0,94% peluang dieksploitasi; lebih tinggi dari 59,9% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
typo3	typo3	Semua versi sebelum 7.1.2
typo3	typo3	Versi 8.0.0 hingga sebelum 8.0.8
typo3	typo3	Versi 9.0.0 hingga sebelum 9.0.4
typo3	typo3	Versi 9.1.0 hingga sebelum 9.1.3
typo3	typo3	Versi 10.0.0 hingga sebelum 10.0.10
typo3	typo3	Versi 11.0.0 hingga sebelum 11.0.3

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://typo3.org/security/advisory/typo3-ext-sa-2021-007 exploit · patch · advisory vendor
https://github.com/benjaminkott/bootstrap_package/commit/de3a568fc311d6712d9339643e51e8627c80530b patch · advisory pihak ketiga
https://github.com/benjaminkott/bootstrap_package/security/advisories/GHSA-p48w-vf3c-rqjx exploit · advisory pihak ketiga

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:10 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.