PT-2021-22416 · Bookstack · Bookstack

Published 2021-11-05 · Updated 2021-11-09 · CVE-2021-3916

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions BookStack (affected versions not specified)

Description The issue is related to Improper Limitation of a Pathname to a Restricted Directory, also known as 'Path Traversal'. This means that an attacker could potentially access files or directories outside the intended restricted directory.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2021-3916

Affected Products

Bookstack

References · 5

• 🔥 https://huntr.dev/bounties/0be32e6b-7c48-43f0-9cec-433000ad8f64 · Exploit
• https://github.com/bookstackapp/bookstack/commit/43830a372fc51a8793199d04a34c3f4ebdfccc7b · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2021-3916 · Security Note
• https://osv.dev/vulnerability/CVE-2021-3916 · Vendor Advisory
• https://t.me/cibsecurity/31891 · Telegram Post