CVE-2020-5256

Katalog CVE

CVSS 8.8 · High EPSS 2,0%

Kerentanan Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection') pada bookstackapp bookstack. Skor CVSS 3.1 8.8 (High) menurut NVD.

Deskripsi (NVD)

BookStack before version 0.25.5 has a vulnerability where a user could upload PHP files through image upload functions, which would allow them to execute code on the host system remotely. They would then have the permissions of the PHP process. This most impacts scenarios where non-trusted users are given permission to upload images in any area of the application. The issue was addressed in a series of patches in versions 0.25.3, 0.25.4 and 0.25.5. Users should upgrade to at least v0.25.5 to avoid this vulnerability.

Rincian

Terbit di NVD

9 Maret 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-95: Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')
CWE-434: Unrestricted Upload of File with Dangerous Type

EPSS (30 hari)

2,0% peluang dieksploitasi; lebih tinggi dari 79,8% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/BookStackApp/BookStack/security/advisories/GHSA-g9rq-x4fj-f5hx advisory pihak ketiga
• https://github.com/BookStackApp/BookStack/releases/tag/v0.25.3 release notes
• https://github.com/BookStackApp/BookStack/releases/tag/v0.25.4 release notes
• https://github.com/BookStackApp/BookStack/releases/tag/v0.25.5 release notes