Description
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.
References (4)
Scores
CVSS v3
7.9
EPSS
0.0067
EPSS Percentile
71.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:L
Details
CWE
CWE-95
CWE-434
Status
published
Products (2)
bookstackapp/bookstack
< 0.25.3
ssddanbrown/bookstack
0 - 0.25.5Packagist
Published
Mar 09, 2020
Tracked Since
Feb 18, 2026