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cve[email protected]CVE-2020-11055
HistoryMay 07, 2020 - 9:15 p.m.

CVE-2020-11055

2020-05-0721:15:11
CWE-79
web.nvd.nist.gov
73
cve-2020-11055
bookstack
xss
vulnerability
comment creation
nvd

3.5 Low

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:S/C:N/I:P/A:N

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

0.001 Low

EPSS

Percentile

34.4%

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

Vulners
NVD
Node
bookstackappbookstackRange0.18.00.29.2
VendorProductVersionCPE
bookstackappbookstack*cpe:2.3:a:bookstackapp:bookstack:*:*:*:*:*:*:*:*

CNA Affected

[
  {
    "product": "BookStack",
    "vendor": "BookStackApp",
    "versions": [
      {
        "status": "affected",
        "version": ">= 0.18.0, < 0.29.2"
      }
    ]
  }
]

3.5 Low

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:S/C:N/I:P/A:N

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

0.001 Low

EPSS

Percentile

34.4%