CVE-2020-11055

Cross-site Scripting in BookStack

State
Published
Severity
6.3 Medium
Published
May 7, 2020
Updated
Aug 4, 2024
Reserved
Mar 30, 2020

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Description

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.

Scores

CVSSScoreVectorSource
3.16.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:LGitHub_M

Weaknesses

  • CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected Products

ProductVersions
BookStackBookStackApp
  • >= 0.18.0, < 0.29.2Affected

References

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