CVE-2020-11055
6.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
5.1 Medium
AI Score
Confidence
High
3.5 Low
CVSS2
Access Vector
Access Complexity
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:S/C:N/I:P/A:N
0.001 Low
EPSS
Percentile
34.3%
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.
Affected configurations
| Vendor | Product | Version | CPE |
|---|---|---|---|
| bookstackapp | bookstack | * | cpe:2.3:a:bookstackapp:bookstack:*:*:*:*:*:*:*:* |
CNA Affected
[
{
"product": "BookStack",
"vendor": "BookStackApp",
"versions": [
{
"status": "affected",
"version": ">= 0.18.0, < 0.29.2"
}
]
}
]Related
6.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
5.1 Medium
AI Score
Confidence
High
3.5 Low
CVSS2
Access Vector
Access Complexity
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:S/C:N/I:P/A:N
0.001 Low
EPSS
Percentile
34.3%