CVE-2020-13443

Katalog CVE

CVSS 8.8 · High EPSS 4,1%

Kerentanan Unrestricted Upload of File with Dangerous Type pada expressionengine. Skor CVSS 3.1 8.8 (High) menurut NVD.

Deskripsi (NVD)

ExpressionEngine before 5.3.2 allows remote attackers to upload and execute arbitrary code in a .php%20 file via Compose Msg, Add attachment, and Save As Draft actions. A user with low privileges (member) is able to upload this. It is possible to bypass the MIME type check and file-extension check while uploading new files. Short aliases are not used for an attachment; instead, direct access is allowed to the uploaded files. It is possible to upload PHP only if one has member access, or registration/forum is enabled and one can create a member with the default group id of 5. To exploit this, one must to be able to send and compose messages (at least).

Rincian

Terbit di NVD

24 Juni 2020

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-434: Unrestricted Upload of File with Dangerous Type

EPSS (30 hari)

4,1% peluang dieksploitasi; lebih tinggi dari 90,6% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://expressionengine.com/blog advisory vendor
• https://gist.github.com/mariuszpoplwski/51604d8a6d7d78fffdf590c25e844e09 exploit · advisory pihak ketiga