CVE-2020-11055CWE-79

Cross-site Scripting in BookStack

Medium · published May 7, 2020

CVSS v3.1
6.3
EPSS
1%
Percentile
55.5
In the wild
Unconfirmed
What it is

In BookStack greater than or equal to 0.18.0 and less than 0.29.2, there is an XSS vulnerability in comment creation. A user with permission to create comments could POST HTML directly to the system to be saved in a comment, which would then be executed/displayed to others users viewing the comment. Through this vulnerability custom JavaScript code could be injected and therefore ran on other user machines. This most impacts scenarios where not-trusted users are given permission to create comments. This has been fixed in 0.29.2.

The record
Technical detail
CVSS v3.1
6.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00782 · 55.5th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2020-05-07T20:40Z
EPSS history
Timeline
  • 07 MAY 20:40Z
    Cross-site Scripting in BookStack
    cvelistv5