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5.4
CVSSv3

CVE-2020-11055

Published: 07/05/2020 Updated: 13/05/2020
CVSS v2 Base Score: 3.5 | Impact Score: 2.9 | Exploitability Score: 6.8
CVSS v3 Base Score: 5.4 | Impact Score: 2.7 | Exploitability Score: 2.3
VMScore: 312
Vector: AV:N/AC:M/Au:S/C:N/I:P/A:N
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Vulnerability Summary

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.

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References

CWE-79https://github.com/BookStackApp/BookStack/security/advisories/GHSA-5vf7-q87h-pg6whttps://bookstackapp.com/blog/beta-release-v0-29-2/https://github.com/BookStackApp/BookStack/releases/tag/v0.29.2http://jvn.jp/en/jp/JVN41035278/index.htmlhttps://nvd.nist.gov
CVSSv3
CVSSv2
CVSSv3
VMScore
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