CVE-2021-4171

Business Logic Errors in janeczku/calibre-web

High · published January 17, 2022

CVSS v3.0
7.7
EPSS
1%
Percentile
72.0
In the wild
Unconfirmed
What it is

⚡ Calibre-web's business logic error could let attackers manipulate your data flow with surprisingly sneaky tactics! 🔥 Think of it like a restaurant where the chef misinterprets orders — a wrong combination could lead to incorrect meals being served, leaving diners confused and unsatisfied. In this case, attackers could exploit the missteps in the logic to get unexpected results from your application. An attacker could potentially exploit this business logic error to manipulate how data is accessed or modified, leading to unauthorized actions. This could mean users gain access to sensitive information or cause critical functionality to fail, making it a high-risk scenario that calls for immediate attention!

Put simply

Think of it like a restaurant where the chef misinterprets orders — a wrong combination could lead to incorrect meals being served, leaving diners confused and unsatisfied. In this case, attackers could exploit the missteps in the logic to get unexpected results from your application. This vulnerability in calibre-web arises from insufficient checks on the application's logic, allowing users to perform operations that should be restricted based on their roles or permissions.

What to do

An attacker could potentially exploit this business logic error to manipulate how data is accessed or modified, leading to unauthorized actions. This could mean users gain access to sensitive information or cause critical functionality to fail, making it a high-risk scenario that calls for immediate attention! To address this vulnerability, review and strengthen the business logic checks in your application. Consider updating to the latest version of calibre-web and audit your access controls to ensure they align with intended user roles. You've got this! Follow these steps to secure your calibre-web instance and become a security hero today! 🛡️

The record
Technical detail
CVSS v3.0
7.7 · HIGH
Vector
CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.01387 · 72.0th percentile
Published
2022-01-17T09:45Z
EPSS history
Timeline
  • 17 JAN 09:45Z
    Business Logic Errors in janeczku/calibre-web
    cvelistv5