CVE-2021-4119CWE-284

Improper Access Control in bookstackapp/bookstack

Medium · published December 15, 2021

CVSS v3.0
5.3
EPSS
27%
Percentile
98.0
In the wild
Unconfirmed
What it is

⚠️ A sneaky little access control flaw lurks in BookStack, and it could allow users to peek at restricted content without permission! 🔍 Think of it like a hotel where some guests can wander into VIP areas without a keycard — it’s a recipe for chaos if the wrong person strolls in! 🏨 This vulnerability could allow unauthorized users to access sensitive information, potentially exposing private data or internal documents. While the severity isn't the highest, any leak could lead to embarrassing issues or a loss of trust within your team.

Put simply

Think of it like a hotel where some guests can wander into VIP areas without a keycard — it’s a recipe for chaos if the wrong person strolls in! 🏨 This improper access control vulnerability in BookStack allows users to bypass intended restrictions, making it possible for them to view content they shouldn't have access to. It's like a security guard who’s been told to only let certain people through but ends up letting anyone in anyway!

What to do

This vulnerability could allow unauthorized users to access sensitive information, potentially exposing private data or internal documents. While the severity isn't the highest, any leak could lead to embarrassing issues or a loss of trust within your team. To address this vulnerability, update BookStack to the latest version immediately to ensure proper access controls are enforced. Review user permissions and roles to ensure they align with your security policies. You've got this! Fixing this vulnerability will help keep your data safe and sound. 🛡️

The record
Technical detail
CVSS v3.0
5.3 · MEDIUM
Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.26893 · 98.0th percentile
Weakness
CWE-284 · Improper Access Control
Published
2021-12-15T17:25Z
EPSS history
Timeline
  • 15 DEC 17:25Z
    Improper Access Control in bookstackapp/bookstack
    cvelistv5