CVE-2020-11055
In BookStack greater than or equal to 0.18.0 and less than 0.29.2, there is an XSS vulnerability in comment creation.
Does this matter?
Lower severity and a low EPSS score (0.78%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 0.78% probability · 54th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- bookstackapp/bookstack
- Source
- security-advisories@github.com
References
- http://jvn.jp/en/jp/JVN41035278/index.htmlThird Party Advisory
- https://bookstackapp.com/blog/beta-release-v0-29-2/Release Notes, Vendor Advisory
- https://github.com/BookStackApp/BookStack/releases/tag/v0.29.2Release Notes
- https://github.com/BookStackApp/BookStack/security/advisories/GHSA-5vf7-q87h-pg6wThird Party Advisory
- http://jvn.jp/en/jp/JVN41035278/index.htmlThird Party Advisory
- https://bookstackapp.com/blog/beta-release-v0-29-2/Release Notes, Vendor Advisory
- https://github.com/BookStackApp/BookStack/releases/tag/v0.29.2Release Notes
- https://github.com/BookStackApp/BookStack/security/advisories/GHSA-5vf7-q87h-pg6wThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.